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Identification and Suppression of Multicomponent Noise in Audio Magnetotelluric Data Based on Convolutional Block Attention Module

Zhang, Liang (author), Li, Guang (author), Chen, Huang (author), Tang, Jingtian (author), Yang, Guanci (author), Yu, Mingbiao (author), Hu, Yong (author), Xu, Jun (author), Sun, J. (author)

Audio magnetotelluric (AMT) is commonly used in mineral resource exploration. However, the weak energy of AMT signals makes them susceptible to being overwhelmed by noise, leading to erroneous geophysical interpretations. In recent years, deep learning has been applied to AMT denoising and has shown better denoising performance compared to...

journal article 2024

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Robust additive manufacturable Ni superalloys designed by the integrated optimization of local elemental segregation and cracking susceptibility criteria

Yu, Hao (author), Fu, Jiabo (author), Wang, Chenchong (author), Chen, Yinping (author), Wang, Lingyu (author), Fang, Haixing (author), Li, Jinguo (author), van der Zwaag, S. (author), Xu, Wei (author)

To achieve an effective design of additively manufacturable Ni superalloys with decent service performance, a hybrid computational design model has been developed, where the strategy to tailor local elemental segregations was integrated within a scheme of minimizing the cracking susceptibility. More specifically, the phase boundary of primary...

journal article 2024

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Synthesis, solubility and thermodynamic properties of N-A-S-H gels with various target Si/Al ratios

Chen, Y. (author), de Lima, Luiz Miranda (author), Li, Zhenming (author), Ma, Bin (author), Lothenbach, Barbara (author), Yin, Suhong (author), Yu, Qijun (author), Ye, G. (author)

The synthesis of N-A-S-H gel with high Si/Al ratios (>2) has been rarely reported in the literature, leaving the establishment of a reliable synthesis route as an open challenge. This paper aims to synthesize N-A-S-H gels with Si/Al ratios ranging from 1 to 3 and establish their thermodynamic database. The effects of reaction temperature,...

journal article 2024

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Synergistic effects of cerium-containing bioactive glasses and apoptotic extracellular vesicles alleviate bisphosphonate-related osteonecrosis of jaw

Ling, Ziji (author), Guo, Songsong (author), Xie, Hanyu (author), Chen, Xinyu (author), Yu, K. (author), Jiang, Hongbing (author), Xu, Rongyao (author), Wu, Yunong (author), Zheng, K. (author)

Bisphosphonates (BPs) are commonly used to treat skeletal diseases. However, long-term use of BPs can lead to BP-related jaw bone necrosis (BRONJ), particularly in patients undergoing tooth extraction surgery. The treatment of BRONJ remains challenging due to the local inflammatory microenvironment. To address this issue, we developed...

journal article 2024

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Benchmarking Robustness and Generalization in Multi-Agent Systems: A Case Study on Neural MMO

Chen, Yangkun (author), Yu, Chenghui (author), Zhu, Hengman (author), Liu, Shuai (author), Zhang, Yibing (author), Suarez, Joseph (author), Zhao, Liang (author), He, J. (author), Chen, Jiaxin (author)

We present the results of the second Neural MMO challenge, hosted at IJCAI 2022, which received 1600+ submissions. This competition targets robustness and generalization in multi-agent systems: participants train teams of agents to complete a multi-task objective against opponents not seen during training. We summarize the competition design...

journal article 2023

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Unveiling the inequalities in virtual water transfer in China: The environmental and economic perspectives

Wei, Ziyi (author), Huang, Kai (author), Chen, Ying (author), Wang, D. (author), Yu, Yajuan (author), Xu, Ming (author), Kapelan, Z. (author)

To alleviate the geographical mismatch between supply and demand of water resources, virtual water trade had attracted extensive attention. Many studies had estimated the virtual water flow and measured the virtual water inequality using Environmental Input-Output (EIO) model. However, EIO model ignores the feedback effect in the trade, which...

journal article 2023

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Rheological Properties of High-Viscosity Modified Asphalt Containing Warm-Mix Additives

Chen, Bei (author), Yu, Xin (author), Dong, Fuqiang (author), Wu, Wenxiu (author), Zu, Yuanzhe (author), Ren, S. (author)

High-viscosity modified asphalt (HVMA) is the most commonly applied method in drainage asphalt pavements. However, some disadvantages of hot-mix HVMA, including high energy consumption and unavoidable environmental pollution, should be improved. Therefore, warm-mix additive (WMA) was introduced. In this paper, the effects of WMA on the...

journal article 2023

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A Hybrid Recursive Implementation of Broad Learning With Incremental Features

Liu, Di (author), Baldi, S. (author), Yu, Wenwu (author), Chen, C. L.P. (author)

The broad learning system (BLS) paradigm has recently emerged as a computationally efficient approach to supervised learning. Its efficiency arises from a learning mechanism based on the method of least-squares. However, the need for storing and inverting large matrices can put the efficiency of such mechanism at risk in big-data scenarios....

journal article 2022

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Kernelized support tensor train machines

Chen, Cong (author), Batselier, K. (author), Yu, Wenjian (author), Wong, Ngai (author)

Tensor, a multi-dimensional data structure, has been exploited recently in the machine learning community. Traditional machine learning approaches are vector- or matrix-based, and cannot handle tensorial data directly. In this paper, we propose a tensor train (TT)-based kernel technique for the first time, and apply it to the conventional...

journal article 2022

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Chemo-Rheological Characterization of Aging Behaviors of Warm-Mix High-Viscosity Modified Asphalt

Chen, Bei (author), Dong, Fuqiang (author), Yu, Xin (author), Ren, S. (author), Zheng, Changjiang (author)

Today, high-viscosity modified asphalt (HVMA) is widely used in drainage asphalt pavements. However, due to its high construction temperature, HVMA is prone to thermal oxidative aging, which reduces its life cycle and increases the maintenance costs of asphalt pavements. In this study, the effects of warm-mix additives on the physical,...

journal article 2022

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A molecular dynamics study of N–A–S–H gel with various Si/Al ratios

Chen, Y. (author), Dolado, Jorge S. (author), Li, Z. (author), Yin, Suhong (author), Yu, Qijun (author), Kostiuchenko, A. (author), Ye, G. (author)

In this paper, the atomic structures of sodium aluminosilicate hydrate (N–A–S–H) gels with different Si/Al ratios are studied by molecular dynamics simulation. An N–A–S–H gel model was obtained from the polymerization of Si(OH)₄ and Al(OH)₃ monomers with the use of a reactive force field (ReaxFF). The simulated atomic...

journal article 2022

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Maritime broadband communication: Wireless channel measurement and characteristic analysis for offshore waters

Li, Changzhen (author), Yu, Junyi (author), Xue, J. (author), Chen, Wei (author), Wang, Shoufeng (author), Yang, Kun (author)

For a long time, the development of maritime communication has been restricted by the low data rate, high-latency and high cost of the current communication systems. The upgrade of new generation mobile communication technologies is attracting more and more attention to conduct a shore-based broadband mobile communication network with high...

journal article 2021

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Effect of coarse aggregate size on non-uniform stress/strain and drying-induced microcracking in concrete

Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)

Non-uniform stresses, strains and microcracking of the concretes with three coarse aggregate sizes (5–10 mm, 10–16 mm, 16–20 mm) dried under 40% relative humidity (RH) for 60 days were quantified using digital image correlation and lattice fracture modelling. The influencing mechanism of coarse aggregate size on the drying-induced...

journal article 2021

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Chlorination contributes to multi-antibiotic resistance in a pilot-scale water distribution system

Li, Jinmei (author), Zhang, Shuting (author), Guo, Lizheng (author), Chen, L. (author), Yu, Zhisheng (author)

The generation and dissemination of antibiotic resistance bacteria (ARB) and antibiotic resistance genes (ARGs) in the environment has become a critical risk to human health. This study is based on a pilot-scale simulated water distribution system to understand the effects of chlorine disinfection treatment (without free chlorine) on ARB and...

journal article 2021

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Neuro-Adaptive Cooperative Tracking Rendezvous of Nonholonomic Mobile Robots

Lu, Peifen (author), Baldi, S. (author), Chen, Guanrong (author), Yu, Wenwu (author)

This brief proposes a neuro-adaptive method for the unsolved problem of cooperative tracking rendezvous of nonholonomic mobile robots (NMRs) subject to uncertain and unmodelled dynamics. A hierarchical cooperative control framework is proposed, which consists of a novel distributed estimator along with local neuro-adaptive tracking...

journal article 2020

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Nonreciprocal coherent coupling of nanomagnets by exchange spin waves

Wang, Hanchen (author), Chen, Jilei (author), Yu, T. (author), Liu, Chuanpu (author), Guo, Chenyang (author), Liu, Song (author), Shen, Ka (author), Jia, Hao (author), Bauer, G.E. (author)

Nanomagnets are widely used to store information in non-volatile spintronic devices. Spin waves can transfer information with low-power consumption as their propagations are independent of charge transport. However, to dynamically couple two distant nanomagnets via spin waves remains a major challenge for magnonics. Here we experimentally...

journal article 2020

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Optimizing the preheating temperature of hot rolled slab from the perspective of the oxidation kinetic

Zhang, Hua (author), Yu, Li (author), Liu, Tao (author), Ni, Hongwei (author), Li, Y. (author), Chen, Z. (author), Yang, Y. (author)

Decreasing the preheating temperature is an effective step to control the energy consumption in the hot rolling process. In order to obtain the lowest preheating temperature to prepare enough thickness of oxide scale in the hot rolling process, the oxidation resistance of commercial steel samples with different Al and Si contents were...

journal article 2020

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Investigation of drying-induced non-uniform deformation, stress, and micro-crack propagation in concrete

Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)

Concrete generally deforms and cracks in a non-uniform manner under drying-induced stress. This study used the lattice fracture model to simulate the drying-induced non-uniform deformations, stresses, and micro-crack propagation in concrete. Experiments were designed to validate the lattice fracture model, wherein the drying-induced non...

journal article 2020

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Effect of relative humidity on drying-induced damage in concrete: A comparative study of digital image correlation and lattice modelling

Gao, Peng (author), Chen, Yang (author), Huang, Haoliang (author), Qian, Zhiwei (author), Schlangen, E. (author), Wei, Jiangxiong (author), Yu, Qijun (author)

To assess the effect of relative humidity (RH) on drying-induced damage in concrete, the non-uniform strains and microcracks in concrete under different RH conditions were obtained using the digital image correlation (DIC) technique and lattice fracture model. The simulated non-uniform displacements were consistent with those captured using...

journal article 2020

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Identification of affinely parameterized state–space models with unknown inputs

Yu, Chengpu (author), Chen, Jie (author), Li, Shukai (author), Verhaegen, M.H.G. (author)

The identification of affinely parameterized state–space system models is quite popular to model practical physical systems or networked systems, and the traditional identification methods require the measurements of both the input and output data. However, in the presence of partial unknown input, the corresponding system identification...

journal article 2020