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Kim, T.K. (author), Wells, J. (author), Kirkegaard, C. (author), Li, Z. (author), Hoffmann, S.V. (author), Gayone, J.E. (author), Fernandez-Torrente, I. (author), Häberle, P. (author), Pascual, J.I. (author), Moore, K.T. (author), Schwartz, A.J. (author), He, H. (author), Spence, J.C.H. (author), Downing, K.H. (author), Lazar, S. (author), Tichelaar, F.D. (author), Borisenko, S.V. (author), Knupfer, M. (author), Hofmann, Ph. (author)
journal article 2005
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Li, Bo (author), Liu, Qiuhong (author), Wang, T. (author), He, He (author), Peng, You (author), Feng, Tao (author)
Outdoor physical activities can promote public health and they are largely influenced by the built environment in different urban settings. Understanding the association between outdoor physical activities and the built environment is important for promoting a high quality of life. Existing studies typically focus on one type of outdoor activity...
journal article 2022
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He, Yuxin (author), Li, L. (author), Zhu, X. (author), Tsui, Kwok Leung (author)
Short-term forecasting of passenger flow is critical for transit management and crowd regulation. Spatial dependencies, temporal dependencies, inter-station correlations driven by other latent factors, and exogenous factors bring challenges to the short-term forecasts of passenger flow of urban rail transit networks. An innovative deep...
journal article 2022
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Li, Bo (author), Wang, Yue (author), Wang, T. (author), He, Xiaoman (author), Kazak, Jan K. (author)
With the advancement of urbanization, the stress on the green infrastructure around the urban agglomeration has intensified, which causes severe ecological problems. The uncertainty of urban growth makes it difficult to achieve effective protection only by setting protection red lines and other rigid measures. It is of practical significance to...
journal article 2022
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Liu, Xinxin (author), Li, Shuoshuo (author), Liu, Liang (author), He, Chao (author), Sun, Zhuang (author), Özdemir, F. (author), Aziz, Muhammad (author), Kuo, Po-Chih (author)
Because of their compact structure, ease of processing and higher heat transfer coefficient, curved-tube heat exchangers are widely applied in various industry applications, such as nuclear power systems, solar-powered engineering, aircraft engine cooling systems and refrigeration and cryogenic systems. Accurate knowledge about the heat transfer...
journal article 2022
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Wang, Jin (author), Han, Hui (author), Li, H. (author), He, Shiming (author), Sharma, Pradip Kumar (author), Chen, Lydia Y. (author)
Due to high capacity and fast transmission speed, 5G plays a key role in modern electronic infrastructure. Meanwhile, sparse tensor factorization (STF) is a useful tool for dimension reduction to analyze high-order, high-dimension, and sparse tensor (HOHDST) data, which is transmitted on 5G Internet-of-things (IoT). Hence, HOHDST data relies...
journal article 2021
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Li, X. (author), He, Y. (author), Fioranelli, F. (author), Jing, X. (author), Yarovoy, Alexander (author), Yang, Y. (author)
The performance of deep learning (DL) algorithms for radar-based human motion recognition (HMR) is hindered by the diversity and volume of the available training data. In this article, to tackle the issue of insufficient training data for HMR, we propose an instance-based transfer learning (ITL) method with limited radar micro-Doppler (MD)...
journal article 2020
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Li, Jianguo (author), Wang, Bin (author), Jiang, Quan (author), He, Benguo (author), Zhang, Xue (author), Vardon, P.J. (author)
In this paper, a meshfree method called adaptive CTM–RPIM is developed to model geotechnical problems with large deformation. The developed adaptive CTM–RPIM is a combination of the Cartesian transformation method (CTM), the radial point interpolation method (RPIM) and the alpha shape method. To reduce the requirement for meshes, the CTM is...
journal article 2021
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Li, M. (author), McDonald, B. C. (author), McKeen, S. A. (author), Eskes, H. (author), Levelt, Pieternel Felicitas (author), Francoeur, C. (author), Harkins, C. (author), He, J. (author), Barth, M. (author)
Nitrogen oxides (NO<sub>x</sub>) are air pollutants critical to ozone and fine particle production in the troposphere. Here, we present fuel-based emission inventories updated to 2018, including for mobile source engines using the Fuel-based Inventory of Vehicle Emissions (FIVEs) and oil and gas production using the Fuel-based Oil and Gas ...
journal article 2021
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Liang, M. (author), Li, Z. (author), He, S. (author), Chang, Z. (author), Gan, Y. (author), Schlangen, E. (author), Šavija, B. (author)
Stress evolution of restrained concrete is a significant direct index in early-age cracking (EAC) analysis of concrete. This study presents experiments and numerical modelling of the early-age stress evolution of Ground granulated blast furnace slag (GGBFS) concrete, considering the development of autogenous deformation and creep. Temperature...
journal article 2022
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Yin, Kangting (author), Jiang, Yaqing (author), He, Hui (author), Ren, Jie (author), Li, Z. (author)
In this paper, fresh (setting and rheology) and hardened properties (strength and shrinkage) of one-part alkali-activated slag (AAS) with and without rice straw ash (RSA) are comprehensively investigated. The reaction kinetics and microstructure of the mixtures are characterized by a series of experimental techniques. The results reveal that...
journal article 2022
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He, Xinyu (author), He, Fang (author), Li, L. (author), Zhang, Lei (author), Xiao, Gang (author)
High-tech giants and start-ups are investing in drone technologies to provide urban air delivery service, which is expected to solve the last-mile problem and mitigate road traffic congestion. However, air delivery service will not scale up without proper traffic management for drones in dense urban environment. Currently, a range of Concepts...
journal article 2022
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Zhang, P. (author), He, C. (author), Shen, C. (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)
Wheel-rail high-frequency interaction is closely related to the formation of railway short-wave defects. Finite element (FE) method has been widely used to simulate wheel-rail dynamic systems, but its validity in modelling high-frequency interaction has not been fully demonstrated in three dimensions (3D). This work aims at comprehensively...
journal article 2024
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Li, Xinyu (author), He, Yuan (author), Fioranelli, F. (author), Jing, Xiaojun (author)
Human activity recognition (HAR) plays a vital role in many applications, such as surveillance, in-home monitoring, and health care. Portable radar sensor has been increasingly used in HAR systems in combination with deep learning (DL). However, it is both difficult and time-consuming to obtain a large-scale radar dataset with reliable labels...
journal article 2022
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Zhu, Jingyu (author), Chen, Guoming (author), Khan, Faisal (author), Yang, M. (author), Li, Xinhong (author), Meng, Xiangkun (author), He, Rui (author)
Managed Pressure Drilling (MPD) system is widely used in the deepwater drilling operation. Reliability assessment plays a critical role in the MPD system in the management of drilling operation risk and the prevention of blowouts. However, the reliability assessment of the MPD system is challenged due to its sequential operations and multiple...
journal article 2021
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Lei, Jintao (author), Qin, Z. (author), Li, Wuhua (author), Bauer, P. (author), He, Xiangning (author)
A shunt active power filter (SAPF) is coupled with load admittance in weak grid conditions, which poses a challenge to stability analysis. In this article, the admittance model of the SAPF is developed, which reveals the coupling mechanism between SAPF and load concisely and accurately. On top of that, the stability region of the system is...
journal article 2021
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Wang, J. (author), Li, Runlong (author), He, Yuan (author), Yang, Yang (author)
In this article, the interference mitigation (IM) problem is tackled as a regression problem. A prior-guided deep learning (DL)-based IM approach is proposed for frequency-modulated continuous-wave (FMCW) radars. Considering the complex-valued nature of radar signals, a complex-valued convolutional neural network, which is different from the...
journal article 2022
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Zhu, X. (author), Hong, Ning (author), He, Fang (author), Lin, Yu (author), Li, L. (author), Fu, Xiaowen (author)
The terminal airspace that surrounds an airport is the area with high flight density and complex structure. Aircraft are asked to follow the standard arrival and departure routes in terminal airspace, yet the actual trajectories may deviate due to air traffic control (ATC) instructions, pilots' decisions, surveillance and flying performance...
journal article 2023
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Ye, Xiangqian (author), Xiao, Zhenyong (author), He, Chuang (author), Li, Wenyu (author), Lin, P. (author), Meng, Yuanyuan (author), Hu, Chichun (author)
This study systematically investigated the potential of waste carbon fibers (WCFs) as a sustainable solution in enhancing the multiple induction heating healing of asphalt mixture, thereby tackling two major concerns: the environmental impact of WCFs and the durability of asphalt pavement. Firstly, four groups of asphalt binder samples with...
journal article 2023
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Wang, J. (author), Li, Runlong (author), Zhang, Xinqi (author), He, Yuan (author)
As one of the crucial sensors for environment sensing, frequency modulated continuous wave (FMCW) radars are widely used in modern vehicles for driving assistance/autonomous driving. However, the limited frequency bandwidth and the increasing number of equipped radar sensors would inevitably cause mutual interference, degrading target...
journal article 2024
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