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Failure probability estimation of natural gas pipelines due to hydrogen embrittlement using an improved fuzzy fault tree approach

Qin, Guojin (author), Li, Ruiling (author), Yang, M. (author), Wang, Bohong (author), Ni, Pingan (author), Wang, Yihuan (author)

The estimation of failure probability is challenging in hydrogen embrittlement in steel pipelines due to the complexity of the synergistic effect of multiple factors. The present study proposed a hybrid methodology to estimate the failure probability of steel pipelines due to hydrogen embrittlement. The methodology integrates the fault tree...

journal article 2024

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Numerical Study of Percolation and Seepage Behaviors in Ion-Adsorption-Type Rare Earth Ore Leaching Process

Dianyu, E. (author), Su, Zhongfang (author), Zeng, Jia (author), Yang, Liuyimei (author), Li, Jing (author), Xu, Qiang (author), Wang, L. (author), Cui, Jiaxin (author)

Ionic rare earth ore is a type of featured rare earth ore in China. Its mining process suffers from a long leaching cycle and considerable consumption of leaching agents. Improving mining efficiency requires a sound physical understanding of the leaching process. In this study, the CFD-based numerical model is used to analyze the physical...

journal article 2023

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Integrating the flow regime and water quality effects into a niche-based metacommunity dynamics model for river ecosystems

Wang, Yibo (author), Liu, Pan (author), Solomatine, D.P. (author), Li, Liping (author), Wu, Chen (author), Han, Dongyang (author), Zhang, Xiaojing (author), Yang, Zhikai (author), Yang, Sheng (author)

Aquatic community dynamics are closely dominated by flow regime and water quality conditions, which are increasingly threatened by dam regulation, water diversion, and nutrition pollution. However, further understanding of the ecological impacts of flow regime and water quality conditions on aquatic multi-population dynamics has rarely been...

journal article 2023

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A bio-inspired and switchable H⁺/OH⁻ ion-channel for room temperature exhaled CO₂ chemiresistive sensing

Chen, Honghao (author), Lu, Ruofei (author), Gao, Yixun (author), Yue, Xiaorui (author), Yang, Haihong (author), Li, Hao (author), Lee, Yi Kuen (author), French, P.J. (author), Wang, Yao (author), Zhou, Guofu (author)

Inspired by the CO₂-induced reversible activation mechanism of the slow anion channel 1 (SLAC1) in plant stomatal guard cells during plant photosynthesis, we designed and prepared a CO₂- switchable H⁺/OH⁻ ion channel (CSPH ion channel). A high-performance chemiresistive room temperature CO<sub>2<...

journal article 2023

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A Plant-inspired Light Transducer for High-performance Near-infrared Light Mediated Gas Sensing

Liang, Hongping (author), Guo, Xin (author), Guo, Lanpeng (author), Liu, Siying (author), Zhan, Qiuqiang (author), Yang, Haihong (author), Li, Hao (author), de Rooij, Nicolaas Frans (author), Lee, Yi Kuen (author), French, P.J. (author), Wang, Yao (author), Zhou, Guofu (author)

Constructing near-infrared light (NIR) light-enhanced room temperature gas sensors is becoming more promising for practical application. In this study, learning from the structure and photosynthetic process of chlorophyll thylakoid membranes in plants, the first “Thylakoid membrane” structural formaldehyde (HCHO) sensor is constructed by...

journal article 2023

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A non-unit line protection method for MMC-HVDC grids based on the curvatures of backward traveling waves

Xie, F. (author), Hao, Zhiguo (author), Ye, Dongmeng (author), Yang, Songhao (author), Li, Chuanxi (author), Dai, Guoan (author), Zhang, Baohui (author), Wang, Ting (author)

The existing protection techniques for high-voltage direct-current (HVDC) grids suffer from several shortcomings such as high sampling frequency, poor robustness, and reliance on simulation for threshold setting. To solve these problems, this paper proposes a non-unit protection method for modular multilevel converter (MMC)-based HVDC grids...

journal article 2023

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Performance Comparison between Data Centers with Different Airflow Management Technologies

Li, Xueqiang (author), Zhang, Zhongyao (author), Wang, Qihui (author), Yang, Xiaohu (author), Hooman, K. (author), Liu, Shengchun (author)

Air cooling systems are widely used in current data centers owing to their low capital costs and high reliability. To satisfy the increasing rack power density, the optimal air-cooling technology and an economic analysis should be carefully discussed. Therefore, this study discusses four airflow management technologies: Case 1: raised floor...

journal article 2023

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Understanding the interaction of nucleotides with UVC light: an insight from quantum chemical calculation-based findings

Tan, C. (author), Wang, S. (author), Yang, Huiru (author), Huang, Qianming (author), Li, Shizhen (author), Liu, X. (author), Ye, H. (author), Zhang, Kouchi (author)

Short-wave ultraviolet (also called UVC) irradiation is a well-adopted method of viral inactivation due to its ability to damage genetic material. A fundamental problem with the UVC inactivation method is that its mechanism of action on viruses is still unknown at the molecular level. To address this problem, herein we investigate the...

journal article 2023

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High-Performance Flexible Strain Sensor Fabricated Using Laser Transmission Pyrolysis

Wang, S. (author), Yang, Huiru (author), Zong, Qihang (author), Huang, Qianming (author), Tan, C. (author), Gao, Chenshan (author), Li, Shizhen (author), Ye, H. (author), Zhang, Kouchi (author), French, P.J. (author)

In recent years, metal crack-based stretchable flexible strain sensors have attracted significant attention in wearable device applications due to their extremely high sensitivity. However, the tradeoff between sensitivity and detection range has been an intractable dilemma, severely limiting their practical applications. Herein, we propose a...

journal article 2023

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Hydrogenated Boron Phosphide THz-Metamaterial-Based Biosensor for Diagnosing COVID-19: A DFT Coupled FEM Study

Tan, C. (author), Wang, S. (author), Yang, Huiru (author), Huang, Qianming (author), Li, Shizhen (author), Liu, X. (author), Ye, H. (author), Zhang, Kouchi (author)

Recent reports focus on the hydrogenation engineering of monolayer boron phosphide and simultaneously explore its promising applications in nanoelectronics. Coupling density functional theory and finite element method, we investigate the bowtie triangle ring microstructure composed of boron phosphide with hydrogenation based on structural and...

journal article 2022

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Prior-Guided Deep Interference Mitigation for FMCW Radars

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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Hierarchical Model Predictive Control for on-Line High-Speed Railway Delay Management and Train Control in a Dynamic Operations Environment

Wang, Yihui (author), Zhu, Songwei (author), Li, Shukai (author), Yang, Lixing (author), De Schutter, B.H.K. (author)

In practice, the operation of high-speed trains is often affected by adverse weather conditions or equipment failures, which result in delays and even cancellations of train services. In this article, a novel two-layer hierarchical model predictive control (MPC) model is proposed for on-line high-speed railway delay management and train...

journal article 2022

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2D Dion–Jacobson CsPbI₃ with Enhanced Interlayer Coupling for Stable and Efficient Photovoltaics

Lei, Yutian (author), Peng, Guoqiang (author), Wang, H. (author), Wang, Gang (author), Yang, Siwei (author), Wang, Qian (author), Li, Zhen Hua (author), Jin, Zhiwen (author)

Inorganic 2D layered CsPbI₃ is awaiting to overcome the phase instability of traditional 3D components. However, the most reported Ruddlesden–Popper (RP) phase 2D CsPbI₃ leads to larger interlayer distance and weaker interlayer coupling since the existence of the van der Waals gap, which deteriorates the performance of...

journal article 2022

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Improve the long-term property of heat-cured mortars blended with fly ash by internal curing

Liu, C. (author), Yang, Lu (author), Li, Z. (author), Nie, Shuai (author), Hu, Chuanlin (author), Wang, Fazhou (author)

Due to the satisfactory property and high productivity, heat-cured concretes have been widely used in engineering practice. However, heat curing process also brings some drawbacks that are detrimental to the long-term property of this material. To address this issue, lightweight fine aggregate (LWFA) was employed to provide internal curing ...

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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Reliability assessment of ultra-deep oil and gas wellbore casing using data statistics and numerical simulations

Yang, Shangyu (author), Zhang, Renren (author), Wang, Jianjun (author), Li, Xinhong (author), Fan, Heng (author), Yang, M. (author)

Ultra-deep oil and gas wells have become a new development trend in onshore oil and gas exploitation. However, Ultra-deep oil and gas wellbore casing is with high failure risk due to the harsh environment. It is essential to evaluate the reliability of wellbore casing. This paper assesses the operational reliability of wellbore casing using...

journal article 2020

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Investigations of mixing technique on the rheological properties of self-compacting concrete

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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A review on the pumping behavior of modern concrete

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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Potential impact of a large-scale cascade reservoir on the spawning conditions of critical species in the Yangtze River, China

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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Abundant grain boundaries activate highly efficient lithium ion transportation in high rate Li₄Ti₅O₁₂ compact microspheres

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 Li₄Ti₅O₁₂ (LTO) microspheres consisting of densely packed primary nanoparticles. The real space distribution of lithium ions inside the...

journal article 2019