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Feng, Xiangdong (author), Luo, Yuxuan (author), Cai, Tianyi (author), Xuan, Yangfan (author), Zhang, Yunshan (author), Shen, Yili (author), Yang, Changgui (author), Xiao, Qijing (author), Du, S. (author), Zhao, Bo (author)The growing trend of the Internet of Things (IoT) involves trillions of sensors in various applications. An extensive array of parameters need to be gathered concurrently with high-precision, low-cost, and low-power sensor nodes, such as resistive (R) and capacitive (C) sensors. Single-chip channel fusion can be an effective solution, while...journal article 2024
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Zhang, Tianming (author), Yan, Gaowei (author), Li, Rong (author), Xiao, Shuyi (author), Pang, Y. (author)The industrially collected process data usually exhibit non-Gaussian and multi-mode characteristics. Due to sensor failures, irregular disturbances, and transmission problems, there are unavoidable outliers that make the data exhibit heavy-tailed characteristics. To this end, a variational auto-encoder regression method based on the mixture...journal article 2024
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Xiao, Tian (author), Zhang, Qiaoling (author), Yang, Xiaohu (author), Hooman, K. (author), Li, Guodong (author)It is indicated that the solder joint of the metal fibrous materials is a critical factor impacting the heat conduction. To reveal the mechanism by which solder joint sizes, solder joint skips, solder flux materials, and filling media affect the thermal conductivity of fibres, pore-scale numerical simulation is employed to study the thermal...journal article 2023
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Zhang, Ruihua (author), Xiao, Rong (author), Wang, Feifei (author), Chu, Wenhai (author), Hu, Jinglong (author), Zhang, Yu (author), Jin, Wei (author), van der Hoek, J.P. (author), Xu, Zuxin (author)The illicit connection of sewage pipes to stormwater pipes commonly occurs in urban stormwater systems. This brings problems that sewage might be directly discharges into natural water and even drinking water sources without treatment, posing risks to ecological safety. Sewage contains various unknown dissolved organic matter (DOM), which could...journal article 2023
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Wang, Hanyu (author), Chen, Dengkai (author), Huang, Y. (author), Zhang, Yahan (author), Qiao, Yidan (author), Xiao, Jianghao (author), Xie, Ning (author), Fan, Hao (author)This study aimed to enhance the real-time performance and accuracy of vigilance assessment by developing a hidden Markov model (HMM). Electrocardiogram (ECG) signals were collected and processed to remove noise and baseline drift. A group of 20 volunteers participated in the study. Their heart rate variability (HRV) was measured to train...journal article 2023
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Zhang, Xinqi (author), Shi, Jihao (author), Huang, Xinyan (author), Xiao, Fu (author), Yang, M. (author), Huang, Jiawei (author), Yin, Xiaokang (author), Sohail Usmani, Asif (author), Chen, Guoming (author)Deep learning has been widely applied to automated leakage detection and location of natural gas pipe networks. Prevalent deep learning approaches do not consider the spatial dependency of sensors, which limits leakage detection performance. Graph deep learning is a promising alternative to prevailing approaches as it can model spatial...journal article 2023
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Xiao, Hong (author), Zhang, Zhihai (author), Zhu, Yajie (author), Gan, Tiancheng (author), Wang, Haoyu (author)Before the operation of newly constructed railways, tamping and stabilizing machines should be used to improve the quality of ballast beds. With the expansion of the railway network and increase of speeds and axle loads, higher quality and efficiency for tamping and stabilizing operation are required. However, previous studies did not involve...journal article 2023
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Xue, Li Hua (author), Xiao, Jun Hua (author), Zhang, De (author), Guo, Y. (author), Chen, Bing Wen (author)Particle shape plays an essential role in deformation characteristics of railway ballast bed. The numerical reconstruction of ballast morphological features, including overall shape and angular distribution, remains a hot issue in research on ballast mechanical behavior simulation. A novel shape reconstruction method was adopted to generate...journal article 2023
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Zhang, Zhihai (author), Xiao, Hong (author), Wang, Y. (author), Fang, Jia (author), Nadakatti, M. M. (author), Wang, Haoyu (author)The lateral resistance of ballast bed is an important parameter to prevent track expansion and maintain track stability. The invasion of sand particles can cause the change of lateral resistance of ballast bed and affect the stability of track structure, but little attention has been paid to the change characteristics of nonlinear lateral...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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Chi, Yihao (author), Xiao, Hong (author), Zhang, Zhihai (author), Fang, Shuwei (author), Wang, Haoyu (author)Turnout is the key component of the railway tracks for trains to change direction, which is vital to operational safety and passenger comfort. Therefore, it is of great importance to perform a scientific and reasonable tamping operation for turnout areas. In this paper, based on the commercial software EDEM and RECURDYN, a coupled simulation...journal article 2022
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Xiao, Hong (author), Zhang, Zhihai (author), Chi, Yihao (author), Wang, Xiaoyu (author), Wang, Haoyu (author), Jiang, Ziqing (author)The sand intrusion in railway tracks in sandy regions can significantly change the mechanical behaviour of tracks and thus threaten the safety of train operation. This paper presents substantial field tests on both sandy and clean railway tracks to study the effect of sand intrusion on the longitudinal resistance of ballast bed and the...journal article 2022
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Yun, Minghui (author), Cai, Miao (author), Yang, Daoguo (author), Yang, Yiren (author), Xiao, Jing (author), Zhang, Kouchi (author)Bond wire damage is one of the most common failure modes of metal-oxide semiconductor field-effect transistor (MOSFET) power devices in wire-welded packaging. This paper proposes a novel bond wire damage detection approach based on two-port network measurement by identifying the MOSFET source parasitic inductance (LS). Numerical calculation...journal article 2022
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Yun, Minghui (author), Yang, Daoguo (author), He, Siliang (author), Cai, Miao (author), Xiao, Jing (author), Zhang, Kailin (author), Zhang, Kouchi (author)With the emerging wide bandgap (WBG) semiconductor development, the increasing power density and efficiency of power electronic converters may cause more switching oscillation, electromagnetic interference noise, and additional power loss, further increasing the probability of device failure. Therefore, determining and quantifying the failure...journal article 2022
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Zhang, Wen (author), Liu, Wei (author), Wu, Yingyee (author), Ma, Chenlu (author), Xiao, Xiyao (author), Zhang, Xichao (author)In times of uncertainty, such as during COVID-19, many organizations experience profit decline, and employees develop a fear of external threats, such as organizational layoffs. However, most of the literature focuses on how people’s fear influences their well-being. Less is known about how employees’ fear of external threats influences their...journal article 2022
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Zhang, Yayun (author), Xiao, C. (author)In the process of the exploitation of deep oil and gas resources, shale wellbore stability control faces great challenges under complex temperature and pressure conditions. It is difficult to reflect the micro mechanism and process of the action of inorganic salt on shale hydration with the traditional experimental evaluation technology on...journal article 2021
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Early dengue outbreak detection modeling based on dengue incidences in Singapore during 2012 to 2017Chen, P. (author), Fu, Xiuju (author), Ma, Stefan (author), Xu, Hai Yan (author), Zhang, Wanbing (author), Xiao, Gaoxi (author), Siow Mong Goh, Rick (author), Xu, George (author), Ching Ng, Lee (author)Dengue has been as an endemic with year-round presence in Singapore. In the recent years 2013, 2014, and 2016, there were several severe dengue outbreaks, posing serious threat to the public health. To proactively control and mitigate the disease spread, early warnings of dengue outbreaks, at which there are rapid and large-scale spread of...journal article 2020
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Zhang, Jiayun (author), Chen, Yang (author), Gong, Qingyuan (author), Ding, Aaron Yi (author), Xiao, Yu (author), Wang, Xin (author), Hui, Pan (author)We identified three temporal patterns shown in commit activities among Chinese and American companies and found that Chinese businesses are more likely to follow long work hours than American ones. We also conducted a survey on the trends of, reasons for, and results of overtime work. Our study could provide references for developers to...journal article 2020
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Chen, Ying (author), Zhang, Xun (author), van der Zwaag, S. (author), Sloof, W.G. (author), Xiao, Ping (author)A self‐healing thermal barrier coating (TBC) system is manufactured by air plasma spraying (APS) and tested by thermal cycling. The ceramic topcoat in the self‐healing APS TBC system consists of an yttria stabilised zirconia (YSZ) matrix and contains self‐shielding aluminium containing MoSi2 healing particles dispersed close to the topcoat/bond...journal article 2019
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Kulczyk-Malecka, Justyna (author), Zhang, Xun (author), Carr, James (author), Nozahic, Franck (author), Estournès, Claude (author), Monceau, Daniel (author), Carabat, A.L. (author), Sloof, W.G. (author), van der Zwaag, S. (author), Withers, Philip J. (author), Xiao, Ping (author)Yttria – partially stabilised zirconia (YPSZ) MoSi<sub>2</sub> composites have been designed to prolong the lifetime of the matrix by self – healing cracks during thermal cycling. The healing reaction at high temperatures is based on the decomposition of MoSi<sub>2</sub>, leading to a volumetrically expanding reaction product, which seals the...journal article 2018
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