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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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Pei, Zibo (author), Zhang, D. (author), Zhi, Yuanjie (author), Yang, Tao (author), Jin, Lulu (author), Fu, Dongmei (author), Cheng, Xuequn (author), Terryn, H.A. (author), Mol, J.M.C. (author), Li, Xiaogang (author)The atmospheric corrosion of carbon steel was monitored by a Fe/Cu type galvanic corrosion sensor for 34 days. Using a random forest (RF)-based machine learning approach, the impacts of relative humidity, temperature and rainfall were identified to be higher than those of airborne particles, sulfur dioxide, nitrogen dioxide, carbon monoxide...journal article 2020
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Sokolovskij, R. (author), Zhang, Jian (author), Zheng, Hongze (author), Li, Wenmao (author), Jiang, Yang (author), Yang, Gaiying (author), Yu, Hongyu (author), Sarro, Pasqualina M (author), Zhang, Kouchi (author)The present work reports on the hydrogen gas detection properties of Pt-AlGaN/GaN high electron mobility transistor (HEMT) sensors with recessed gate structure. Devices with gate recess depths from 5 to 15 nm were fabricated using a precision cyclic etching method, examined with AFM, STEM and EDS, and tested towards H2 response at high...journal article 2020
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Li, X. (author), Li, Zhenghui (author), Fioranelli, F. (author), Yang, Shufan (author), Romain, Olivier (author), Le Kernec, Julien (author)Radar-based classification of human activities and gait have attracted significant attention with a large number of approaches proposed in terms of features and classification algorithms. A common approach in activity classification attempts to find the algorithm (features plus classifier) that can deal with multiple activities analysed in...journal article 2020
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Li, Huajian (author), Huang, Fali (author), Yi, Zhonglai (author), Wang, Zhen (author), Zhang, Y. (author), Yang, Zhengxian (author)Rheological properties are of significant importance in successful placement and performance of self-compacting concrete (SCC). In this work, the rheological properties of SCC, combined with a powder-viscosity modifying admixture, were investigated based on a series of experimental studies. The modified Bingham model was applied to determine...journal article 2020
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Li, Shaoxuan (author), Jia, Mu (author), Le Kernec, Julien (author), Yang, Shufan (author), Fioranelli, F. (author), Romain, Olivier (author)Nowadays, health monitoring issues are increasing as the worldwide population is aging. In this paper, the radar modality is used to classify with radar signature automatically. The classic approach is to extract features from micro-Doppler signatures for classification. This data representation domain has its limitations for activities...conference paper 2020
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Jia, Mu (author), Li, Shaoxuan (author), Le Kernec, Julien (author), Yang, Shufan (author), Fioranelli, F. (author), Romain, Olivier (author)As the number of older adults increases worldwide, new paradigms for indoor activity monitoring are required to keep people living at home independently longer. Radar-based human activity recognition has been identified as a sensing modality of choice because it is privacy-preserving and does not require end-users compliance or manipulation. In...conference paper 2020
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Li, Huajian (author), Sun, Deyi (author), Wang, Zhen (author), Huang, Fali (author), Yi, Zhonglai (author), Yang, Zhengxian (author), Zhang, Y. (author)Pumping is the most common technique used to transport fresh concrete in construction sites. The large-scale use of concrete all over the world makes the pumping increasingly important. A wide variety of additives and admixtures are incorporated into modern concrete in order for sustainable development. The performance of modern concrete is...journal article 2020
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Yang, Z. (author), Li, Z. (author)Recent finite element (FE) simulations have revealed the generation and propagation of waves in rail surfaces induced by wheel-rail frictional rolling. These waves have rarely been addressed in the literature. This paper presents an in-depth analysis of these waves, aiming to give new insights into the contact mechanics, a research area in...journal article 2019
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Li, M. (author), Albayrak, A. (author), Zhang, Yu (author), van Eijk, D.J. (author), Yang, Zengyao (author)The usability now serves as a fundamental quality of a computational device, e.g. smartphone. Moreover, the smartphone has firmly embedded into our daily life as an indispensable part, so the context and style that user may interact with them are largely different from a decade ago. Nowadays, testing usability with end user has become a...conference paper 2019
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Ma, Jiaming (author), Wei, Yinping (author), Gan, Lin (author), Wang, C. (author), Xia, Heyi (author), Lv, Wei (author), Li, Jia (author), Li, Baohua (author), Yang, Quan Hong (author), Kang, Feiyu (author), He, Yan Bing (author)It is a huge challenge for high-tap-density electrodes to achieve high volumetric energy density but without compromising the ionic transportation. Herein, we prepared compact Li<sub>4</sub>Ti<sub>5</sub>O<sub>12</sub> (LTO) microspheres consisting of densely packed primary nanoparticles. The real space distribution of lithium ions inside the...journal article 2019
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Yang, Z. (author), Deng, X. (author), Li, Z. (author)The modeling of dynamic frictional rolling contact is crucial for accurately predicting behavior and deterioration of structures under dynamic interactions such as wheel/rail, tire/road, bearings and gears. However, reliable modeling of dynamic frictional rolling contact is challenging, because it requires a careful treatment of friction and...journal article 2019
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Yang, Z. (author), Li, Z. (author)Complex frictional rolling contact and high-frequency wheel dynamic behavior make modeling squeal greatly challenging. The falling-friction effect and wheel mode-coupling behavior are believed to be the two main mechanisms that generate unstable wheel vibration and the resulting squeal noise. To rigorously consider both mechanisms in one...journal article 2019
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Arcondoulis, Elias J. G. (author), Ragni, D. (author), Rubio Carpio, A. (author), Avallone, F. (author), Liu, Yu (author), Yang, Yannian (author), Li, Zhiyong (author)Porous coated cylinders have been shown to reduce the vortex shedding tone and broadband noise of a bare cylinder placed in uniform flow within specific Reynolds number regimes. The processes by which the vortex shedding and thus tone suppression take place are still uncertain despite numerous numerical and experimental studies. It is understood...conference paper 2019
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Yu, Meixiu (author), Yang, Daqing (author), Liu, X. (author), Li, Qiongfang (author), Wang, Guoqing (author)Dam building and reservoir operations alter the downstream hydrological regime, and as a result, affect the health of the river aquatic ecosystem, particularly for large-scale cascade reservoirs. This study investigated the impact of the Gezhouba Reservoir (GR) and the Three Gorges Reservoir (TGR) on the spawning conditions of two critical...journal article 2019
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Spin and orbital structure of the first six holes in a silicon metal-oxide-semiconductor quantum dotLiles, S. D. (author), Li, R. (author), Yang, C. H. (author), Hudson, F. E. (author), Veldhorst, M. (author), Dzurak, Andrew S. (author), Hamilton, A. R. (author)Valence band holes confined in silicon quantum dots are attracting significant attention for use as spin qubits. However, experimental studies of single-hole spins have been hindered by challenges in fabrication and stability of devices capable of confining a single hole. To fully utilize hole spins as qubits, it is crucial to have a detailed...journal article 2018
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Yang, Yang (author), Li, Diquan (author), Tong, Tiegang (author), Zhang, D. (author), Zhou, Yatong (author), Chen, Yangkang (author)Strong noise is one of the toughest problems in the controlled-source electromagnetic (CSEM) method, which highly affects the quality of recorded data. The three main types of noise existing in CSEM data are periodic noise, Gaussian white noise, and nonperiodic noise, among which the nonperiodic noise is thought to be the most difficult to...journal article 2018
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Li, Jiaguang (author), Yang, Xiucheng (author), Maffei, C. (author), Tooth, Stephen (author), Yao, Guangqing (author)In some internally-draining dryland basins, ephemeral river systems terminate at the margins of playas. Extreme floods can exert significant geomorphological impacts on the lower reaches of these river systems and the playas, including causing changes to flood extent, channel-floodplain morphology, and sediment dispersal. However, the...journal article 2018
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Qin, Hongbo (author), Kuang, Tianfeng (author), Luan, Xinghe (author), Li, Wangyun (author), Xiao, Jing (author), Zhang, Ping (author), Yang, Daoguo (author), Zhang, Kouchi (author)The mechanical and electronic properties of two GaN crystals, wurtzite and zinc-blende GaN, under various hydrostatic pressures were investigated using first principles calculations. The results show that the lattice constants of the two GaN crystals calculated in this study are close to previous experimental results, and the two GaN crystals...journal article 2018
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Yang, Z. (author), Boogaard, M.A. (author), Wei, Z. (author), Liu, Jinzhao (author), Dollevoet, R.P.B.J. (author), Li, Z. (author)This paper presents an analysis of the transient contact solutions of wheel-rail frictional rolling impacts calculated by an explicit finite element model of the wheel-insulated rail joint (IRJ) dynamic interaction. The ability of the model to simulate the dynamic behavior of an IRJ has been validated against a comprehensive field measurement in...journal article 2018