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Akademický článek

High-Sensitivity Ultrasonic Guided Wave Monitoring of Pipe Defects Using Adaptive Principal Component Analysis

Autor: Junwang Ma, Zhifeng Tang, Fuzai Lv, Changqun Yang, Weixu Liu, Yinfei Zheng, Yang Zheng

Publikováno v: Sensors, Vol 21, Iss 19, p 6640 (2021)

Ultrasonic guided wave monitoring is regularly used for monitoring the structural health of industrial pipes, but small defects are difficult to identify owing to the influence of the environment and pipe structure on the guided wave signal. In this

Externí odkaz: https://doaj.org/article/1d31bf42ca5449f1871d67f3adedf9db

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Akademický článek

Numerical Investigation of Locating and Identifying Pipeline Reflectors Based on Guided-Wave Circumferential Scanning and Phase Characteristics

Autor: Weixu Liu, Zhifeng Tang, Fuzai Lv, Yang Zheng, Pengfei Zhang, Xiangxian Chen

Publikováno v: Applied Sciences, Vol 10, Iss 5, p 1799 (2020)

The methodology based on reflected guided-wave by a reflector associated with an increase or a decrease in the cross-sectional area has the challenge of determining their location and identity. This paper presents a numerical investigation of a metho

Externí odkaz: https://doaj.org/article/68f05cf75d2b41a49100f5e5f83994e0

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Sliding Window Dynamic Time-Series Warping-Based Ultrasonic Guided Wave Temperature Compensation and Defect Monitoring Method for Turnout Rail Foot

Autor: Zhifeng Tang, Junwang Ma, Weixu Liu, Pengfei Zhang, Fuzai Lv

Publikováno v: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 69:2681-2695

Temperature changes are a major challenge in outdoor guided wave structural health monitoring of rails. Temperature variations greatly impact the waveform of guided wave signals, making it challenging to diagnose and characterize defects. Traditional

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7160abc868646455a88015be21147e93
https://doi.org/10.1109/tuffc.2022.3195933

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Mechanical Bond Approach to Introducing Self-Adaptive Active Sites in Covalent Organic Frameworks for Zinc-Catalyzed Organophosphorus Degradation

Autor: Xujiao Ma, Cheng Zhang, Qinghao Meng, Guangshan Zhu, Fengchao Cui, Weixu Liu, Zeyu Wang, Fuli Cai, Jiahui Feng, Ye Yuan, Yajie Yang, Xianghui Ruan

Publikováno v: ACS Central Science
ACS Central Science, Vol 7, Iss 10, Pp 1698-1706 (2021)

Mechanically interlocked molecules (MIMs) with discrete molecular components linked through a mechanical bond in space can be harnessed for the operation of molecular switches and machines, which shows huge potential to imitate the dynamic response o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d990af488a08f827c6ca16275eda86fc
https://doi.org/10.1021/acscentsci.1c00941

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Efficient Photocatalytic Hydrogen and Oxygen Evolution by Side‐Group Engineered Benzodiimidazole Oligomers with Strong Built‐in Electric Fields and Short‐Range Crystallinity

Autor: Jingyi Xu, Wenlu Li, Weixu Liu, Jianfang Jing, Kunfeng Zhang, Liping Liu, Jun Yang, Enwei Zhu, Junshan Li, Yongfa Zhu

Publikováno v: Angewandte Chemie International Edition. 61

The insufficient charge separation and sluggish exciton transport severely limit the utilization of polymeric photocatalysts. To resolve the above issues, we incorporate bountiful carboxyl substituents within a novel benzodiimidazole oligomer and ass

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e0146d97a75e4847adaa4bf706ed05e8
https://doi.org/10.1002/anie.202212243

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