Collection: research
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Lu, Zhiwei (author), Li, Xiaoling (author), Wei, Jinxiu (author), Cai, Miao (author), Yang, Daoguo (author), Zhang, Kouchi (author)
UVC-LED is known as a deep ultraviolet LED. The application development and disinfection efficiency of UVC-LED modules are important problems encountered when UVC-LED products are rushed into commercialization. In this article, a specific disinfection experiment with a UVC-LED module was combined to analyze the disinfection efficiency. UVC-LEDs...
conference paper 2022
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He, Xianqi (author), Yang, Lin (author), Lu, Chao (author), Gong, Jianwei (author), Li, Z. (author)
In urban environments, the complex and uncertain intersection scenarios are challenging for autonomous driving. To ensure safety, it is crucial to develop an adaptive decision making system that can handle the interaction with other vehicles. Manually designed model-based methods are reliable in common scenarios. But in uncertain environments,...
conference paper 2022
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Tang, Zhen (author), Li, Z. (author), Hua, Jiang (author), Lu, Shuang (author), Chi, Lin (author)
Pretreated coconut fibers can be applied as renewable damping components in fiber-reinforced cement mortars to reduce the adverse effects of vibration and promote the recycling of waste fibers. In this study, FT-IR, TG, XRD, and SEM measurements were performed to analyze the morphologies and physicochemical properties of the coconut fibers...
journal article 2022
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Sun, Renjuan (author), Lu, Wei (author), Tawfek, Abdullah M. (author), Guan, Yanhua (author), Hu, Xinlei (author), Zhang, Hongzhi (author), Ling, Yifeng (author), Šavija, B. (author)
The resistance of cracked ECC against chloride ingress is mainly governed by the accumulated crack width of all the cracks rather than the maximum width of multiple cracks. However, most studies focus on the influence of a single fine crack
journal article 2022
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Yaphary, Yohannes L. (author), Leng, Zhen (author), Wang, Haopeng (author), Ren, S. (author), Lu, Guoyang (author)
Low-temperature cracking is a major concern to improve the utilization of recycled asphalt mixture (RAM). A mechanism by which the crack propagates can provide a basis for advanced technological mitigation. Microcrack formations in the interfacial proximity of the virgin and aged binders have been identified from electron microscopy tests....
journal article 2022
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Lu, Hai (author), Yu, Ruyun (author), Zhu, Yan (author), He, Xiao (author), Liang, K. (author), Chu, William Cheng-Chung (author)
Attribute-Based Encryption (ABE) plays an important role in current secure data sharing through fine-grained customizable policies. However, the existing ABE schemes only support simple predicates, = and ≠, but cannot express a more general membership predicates, ∈ and ∉, in policies. The low expressivity of ABE will enlarge the ciphertext...
journal article 2022
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Lu, Jing (author), Jia, Li (author), Zhou, Jie (author), Jiang, Min (author), Zhong, Yulong (author), Menenti, M. (author)
A drought-induced water storage deficit index (D-WSDI) is proposed to quantify the response of GRACE-based terrestrial water storage change to meteorological drought and the impact of drought on water storage deficit. D-WSDI is defined as the normalized residual component of GRACE time-series data after removing the long-term trend and...
journal article 2022
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Zhang, Yingyu (author), Yang, Juan (author), van Haaften, M.A. (author), Li, Linyi (author), Lu, Shenglian (author), Wen, Weiliang (author), Zheng, Xiuguo (author), Pan, Jian (author), Qian, Tingting (author)
Plant photosynthesis and biomass production are associated with the amount of intercepted light, especially the light distribution inside the canopy. Three virtual canopies (n = 80, 3.25 plants/m2) were constructed based on average leaf size of the digitized plant structures: ‘small leaf’ (98.1 cm2), ‘medium leaf’ (163.0 cm2) and ‘big leaf’ (241...
journal article 2022
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Wei, Zilong (author), Sun, Xianfu (author), Yang, Fei (author), Ke, Zaitian (author), Lu, Tao (author), Zhang, P. (author), Shen, C. (author)
The presence of rail corrugation enlarges the wheel-rail impact and exacerbates the failure of track components, and the situation becomes even worse under high train speed, which promotes the urgent need for an efficient and easily accessible inspection method. Conventional diagnosis approaches such as axle box acceleration (ABA) and image...
journal article 2022
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Fang, B. (author), Lu, T. (author), Cheng, Liwei (author), Wang, Dongdong (author), Ni, Yang (author), Fan, Bowen (author), Meng, Jiuling (author), Vlugt, T.J.H. (author), Ning, Fulong (author)
Methane hydrate dissociation kinetics can be inhibited in NaCl solutions; however, this effect is reversed by promoting bubble formation that enhances dissociation. The negative and positive effects of inorganic salt injection on gas production from hydrate-bearing sediments are still controversial. Here, molecular dynamics simulations were...
journal article 2022
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Chen, Jiazhou (author), Xu, Yanghui (author), Lu, Shufang (author), Liang, Ronghua (author), Nan, L. (author)
We present a novel 3-D instance segmentation framework for multiview stereo (MVS) buildings in urban scenes. Unlike existing works focusing on semantic segmentation of urban scenes, the emphasis of this work lies in detecting and segmenting 3-D building instances even if they are attached and embedded in a large and imprecise 3-D surface model....
journal article 2022
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Zhou, J. (author), Liu, Xuan (author), Xiong, Xuqian (author), Jia, Li (author), Lu, Jing (author), Cui, Yilin (author)
Satellite-based Earth Observation systems archived a variety of vegetation products during the last 50 years, which can reveal regional to global ecosystem dynamics across diverse spatiotemporal scales. The anomaly metrics such as Vegetation Condition Index (VCI) defined by comparing the current vegetation growth condition to historical...
conference paper 2022
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Chi, Lin (author), Li, Wenda (author), Li, Z. (author), Wang, Zheng (author), Lu, Shuang (author), Liu, Qi (author)
Alternative current impedance spectroscopy (ACIS) is a promising non-destructive testing method to monitor long-term change and assess the durability of concrete. This study investigates the influences of Ethylene Diamine Tetraacetic Acid (EDTA) on the hydration of hardening cement by ACIS. It is found that EDTA retards the early-age...
journal article 2022
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Li, Y. (author), Lu, H. (author), Wang, L. (author), Eltayieb, M.F.M.I. (author), Slob, E.C. (author)
Natural gas hydrates production tests over the last two decades has sown that production is not without risks. Indirect effects in the sedimentary rocks of phase changes are changes in porosity, permeability, and saturation. From a field production test site, porosity changes in the range of 15% to 19% and saturation from 5% to 60% were...
conference paper 2022
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Cai, Liying (author), Lu, Zhenghao (author), Tang, Z. (author), Yu, Xiaopeng (author)
This letter presents a low-power dB-linear variable gain amplifier (VGA) with a small linear-in-dB error over a wide gain tuning range. An exponential current ratio is realized in the linear-in-dB control circuit based on the subthreshold I-V characteristic. The VGA is built with subthreshold common-gate transistors as current steering,...
journal article 2022
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Fang, Zigeng (author), Liu, Y. (author), Lu, Qiuchen (author), Pitt, Michael (author), Hanna, Sean (author), Tian, Zhichao (author)
A building's strategic asset management (SAM) capability has traditionally been limited by its site-based management. With the emergence of needs from clients about delivering a long-term portfolio-based building asset management plan that minimizes the asset risk and optimizes the value of their asset portfolios, SAM Units have emerged as a...
journal article 2022
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Lu, T. (author), Du, S. (author)
A 6.78 MHz dual-output reconfigurable rectifier for wireless power transfer is presented. The proposed rectifier integrates AC-DC rectification and DC-DC regulation into a single-stage topology, alleviating received power loss and reducing system volume cost. By adding a switch matrix after rectifying bridge, a dual output can be realized and...
conference paper 2022
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Liu, Gang (author), Du, Zhao (author), Xiao, Tian (author), Guo, Junfei (author), Lu, Liu (author), Yang, Xiaohu (author), Hooman, K. (author)
Solar energy, as a kind of renewable energy, offers a large reserve to be harvested at a reasonably low cost for engineering applications. To decouple the temporal and spatial relevance of the continuous energy supply of solar energy, latent heat thermal energy storage can deal with this problem at different temperatures. Aiming to improve...
journal article 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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Wang, H. (author), Liu, X. (author), Apostolidis, P. (author), Wang, Di (author), Leng, Zhen (author), Lu, Guoyang (author), Erkens, S. (author), Scarpas, Athanasios (author)
Rubberized asphaltic materials have been frequently combined with warm-mix asphalt technologies to tackle the issues of high energy consumptions and emissions during construction. Effective and accurate characterization of binder properties is conducive to the improvement of long-term pavement performance. The current study aims to quantify...
journal article 2021
Collection: research
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