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Liu, J. (author), Wang, L. (author), Shen, Ka (author)
A magnon spin-orbit coupling, induced by the dipole-dipole interaction, is derived in monoclinic-stacked bilayer honeycomb spin lattice with perpendicular magnetic anisotropy and antiferromagnetic interlayer coupling. Linear crossings are predicted in the magnon spectrum around the band minimum in Γ valley, as well as in the high-frequency...
journal article 2020
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Liu, J. (author), Wang, L. (author), Shen, Ka (author)
The existence of magnetostatic surface spin waves in ferromagnets, known as the Damon-Eshbach mode, was recently demonstrated to originate from the topology of the dipole-dipole interaction. In this work, we study the topological characteristics of magnons in easy-axis antiferromagnets with uniaxial anisotropy. The dipolar spin waves are...
journal article 2020
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Shen, C. (author), Li, Z. (author), Dollevoet, R.P.B.J. (author)
Railway crossings are critical components in the rail network. They usually degrade faster than the other components. It is therefore vital to monitor their conditions using appropriate methods. This paper proposes to use the ambient vibration caused by the train-track interaction from a distance to monitor the condition of railway crossings....
conference paper 2020
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Shen, X. J. (author), Li, D. Z. (author), Tang, S. (author), Chen, J. (author), Fang, H. (author), Wang, G. D. (author)
It is still a big challenge to obtain excellent low-temperature toughness for bulk steel materials. Delamination is an effective method to improve low-temperature toughness. In the present study, delamination toughening in a low carbon microalloyed steel plate with elongated and ultrafine-grained microstructure rolled in the dual-phase region...
journal article 2019
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Wang, Tan (author), Hanjalic, A. (author), Xu, Xing (author), Shen, Heng Tao (author), Yang, Yang (author), Song, Jingkuan (author)
A major challenge in matching images and text is that they have intrinsically different data distributions and feature representations. Most existing approaches are based either on embedding or classification, the first one mapping image and text instances into a common embedding space for distance measuring, and the second one regarding...
conference paper 2019
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Hashemi, M. (author), Zhou, Lei (author), Shen, Y. (author), de Vreede, L.C.N. (author)
This article presents the first application of a digital-intensive intrinsically linear digitally controlled class-E technique in a Doherty configuration. By careful nonlinear segmentation and multiphase RF-clocking along with overdrive-voltage control and automatic duty-cycle correction, it is shown that even the nonlinearities related to...
journal article 2019
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Fernández-Dacosta, Cora (author), Shen, Li (author), Schakel, Wouter (author), Ramirez, Andrea (author), Kramer, Gert Jan (author)
The deployment of low-emission alternative fuels is crucial to decarbonise the transport sector. A number of alternatives like hydrogen or dimethyl ether/methanol synthesised using CO<sub>2</sub> as feedstock for fuel production (hereafter refer to “CO<sub>2</sub>-based fuels”) have been proposed to combat climate change. However, the...
journal article 2019
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Li, Fankang (author), Shen, Jiazhou (author), Parnell, S.R. (author), Thaler, Alex N. (author), Matsuda, Masaaki (author), Keller, Thomas (author), Delaire, Olivier (author), Pynn, Roger (author), Fernandez-Baca, Jaime A. (author)
The energy resolution of the conventional way of measuring a small change in a phonon dispersion curve using neutron scattering is restricted by the relatively coarse intrinsic resolution ellipsoid of the neutron triple-axis spectrometer (TAS). By implementing inelastic neutron spin echo on the host TAS using the Larmor precession of the...
journal article 2019
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Shen, Yanning (author), Leus, G.J.T. (author)
Graphs have well-documented merits for modeling complex systems, including financial, biological, and social networks. Network nodes can also include attributes such as age or gender of users in a social network. However, the size of real-world networks can be massive, and nodal attributes can be unavailable. Moreover, new nodes may emerge...
conference paper 2019
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Shen, Yanning (author), Leus, G.J.T. (author), Giannakis, Georgios B. (author)
Graphs are widely adopted for modeling complex systems, including financial, biological, and social networks. Nodes in networks usually entail attributes, such as the age or gender of users in a social network. However, real-world networks can have very large size, and nodal attributes can be unavailable to a number of nodes, e.g., due to...
journal article 2019
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Streib, S.D. (author), Vidal-Silva, Nicolas (author), Shen, Ka (author), Bauer, G.E. (author)
We address the theory of magnon-phonon interactions and compute the corresponding quasiparticle and transport lifetimes in magnetic insulators, with a focus on yttrium iron garnet at intermediate temperatures from anisotropy- and exchange-mediated magnon-phonon interactions, the latter being derived from the volume dependence of the Curie...
journal article 2019
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Dadisman, Ryan (author), Shen, Jiazhou (author), Feng, Hao (author), Crow, Lowell (author), Jiang, Chenyang (author), Wang, Tianhao (author), Zhang, Yuxuan (author), Bilheux, Hassina (author), Parnell, S.R. (author)
Several methods of polarized neutron scattering call for a zero magnetic field (ZF) region to reduce magnetic field integral aberrations while preserving the neutron polarization. Though the design for large angle neutron scattering has been presented in various places, the design characterization and tuning has not been discussed before. In...
journal article 2019
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Shen, Chunguang (author), Wang, Chenchong (author), Wei, Xiaolu (author), Li, Yong (author), van der Zwaag, S. (author), Xu, W. (author)
With the development of the materials genome philosophy and data mining methodologies, machine learning (ML) has been widely applied for discovering new materials in various systems including high-end steels with improved performance. Although recently, some attempts have been made to incorporate physical features in the ML process, its...
journal article 2019
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Chen, Jilei (author), Yu, T. (author), Liu, Chuanpu (author), Liu, Tao (author), Madami, Marco (author), Shen, Ka (author), Zhang, J (author), Blanter, Y.M. (author), Bauer, G.E. (author)
Magnon spintronics is a prosperous field that promises beyond-CMOS technology based on elementary excitations of the magnetic order that act as information carriers for future computational architectures. Unidirectional propagation of spin waves is key to the realization of magnonic logic devices. However, previous efforts to enhance the...
journal article 2019
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Shen, Yanfeng (author), Wang, Huai (author), Al Durra, Ahmed (author), Qin, Z. (author), Blaabjerg, Frede (author)
This paper proposes a new series resonant DC-DC converter with four configurable operation states depending on the input voltage and output voltage levels. It suits well for the DC-DC stage of grid-connected photovoltaic (PV) systems with a wide-input voltage range and different grid voltage levels, i.e., 110/120 V and 220/230/240 V. The...
journal article 2019
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de Vries, F.K. (author), Sol, M.L. (author), Gazibegovic, S. (author), op het Veld, R.L.M. (author), Balk, S.C. (author), Car, D. (author), Bakkers, E.P.A.M. (author), Kouwenhoven, Leo P. (author), Shen, J. (author)
We study superconducting quantum interference in InSb flake Josephson junctions. An even-odd effect in the amplitude and periodicity of the superconducting quantum interference pattern is found. Interestingly, the occurrence of this pattern coincides with enhanced conduction at both edges of the flake, as is deduced from measuring a...
journal article 2019
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Shen, Y. (author), Lindenbergh, R.C. (author), Wang, Jinguo (author), Ferreira, Vagner G. (author)
Bricks are the vital component of most masonry structures. Their maintenance is critical to the protection of masonry buildings. Terrestrial Light Detection and Ranging (TLidar) systems provide massive point cloud data in an accurate and fast way. TLidar enables us to sample and store the state of a brick surface in a practical way. This...
journal article 2018
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Vimalakanthan, K. (author), Schepers, J.G. (author), Shen, W. Z. (author), Rahimi, H. (author), Micallef, D. (author), Ferreira, Carlos (author), Jost, E. (author), Klein, L. (author)
As part of the AVATAR and Mexnext projects, this study compares several methods used to derive lifting line variables from CFD simulations of the MEXICO rotor in yawed inflow. The results from six partners within the AVATAR/Mexnext consortium using five different methods of extraction were compared. Overall comparison of the induced...
journal article 2018
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Song, Jingkuan (author), Guo, Yuyu (author), Gao, Lianli (author), Li, Xuelong (author), Hanjalic, A. (author), Shen, Heng Tao (author)
Video captioning, in essential, is a complex natural process, which is affected by various uncertainties stemming from video content, subjective judgment, and so on. In this paper, we build on the recent progress in using encoder-decoder framework for video captioning and address what we find to be a critical deficiency of the existing...
journal article 2018
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Yang, Yang (author), Zhou, Jie (author), Ai, Jiangbo (author), Bin, Yi (author), Hanjalic, A. (author), Shen, Heng Tao (author)
In this paper, we propose a novel approach to video captioning based on adversarial learning and long short-term memory (LSTM). With this solution concept, we aim at compensating for the deficiencies of LSTM-based video captioning methods that generally show potential to effectively handle temporal nature of video data when generating...
journal article 2018
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