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Stretchable strain sensor based on HfSe₂/LIG composite with high sensitivity and good linearity within a wide range

Yang, Huiru (author), Wang, S. (author), Huang, Qianming (author), Tan, C. (author), Gao, Chenshan (author), Xu, Siyuan (author), Ye, Huaiyu (author), Zhang, Kouchi (author)

Flexible strain sensors based on nanomaterials have sparked a lot of interest in the field of wearable smart electronics. Laser induced graphene (LIG) based sensors in particular stand out due to their straightforward fabrication procedure, three-dimensional porous structures, and exceptional electromechanical capabilities. Recent studies...

journal article 2023

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An integrated resilience assessment methodology for emergency response systems based on multi-stage STAMP and dynamic Bayesian networks

An, Xu (author), Yin, Zhiming (author), Tong, Qi (author), Fang, Yiping (author), Yang, M. (author), Yang, Qiaoqiao (author), Meng, Huixing (author)

The interactions of external disruptions and technical-human-organizational factors in emergency operations are usually observed. Resilience assessment of emergency systems can improve emergency response capability and system functional recovery. The increasing complexity and coupling of factors in emergency response systems need to be...

journal article 2023

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Anisotropic proximity-induced superconductivity and edge supercurrent in Kagome metal, K_1-xV₃Sb₅

Wang, Y. (author), Yang, Shuo Ying (author), Sivakumar, Pranava K. (author), Ortiz, Brenden R. (author), Teicher, Samuel M.L. (author), Wu, H. (author), Srivastava, Abhay K. (author), Garg, Chirag (author), Ali, M.N. (author)

Materials with Kagome nets are of particular importance for their potential combination of strong correlation, exotic magnetism, and electronic topology. KV3Sb5 was discovered to be a layered topological metal with a Kagome net of vanadium. Here, we fabricated Josephson Junctions of K1-xV3Sb5 and induced superconductivity over long junction...

journal article 2023

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Empirical analysis and modeling of the allometric scaling of urban freight systems

Lin, Xu Jie (author), Liu, Er Jian (author), Yang, Y. (author), Jia, Xiang Yu (author), Yan, Xiao Yong (author)

Heavy trucks which undertake the majority of freight volume play an important role in urban freight systems. By analyzing heavy truck trip data, we find a superlinear scaling relationship for heavy truck trips and a sublinear scaling relationship for heavy truck numbers relative to urban population size. Although these allometric scaling...

journal article 2023

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Fishing Behavior Detection and Analysis of Squid Fishing Vessel Based on Multiscale Trajectory Characteristics

Zhang, Fan (author), Yuan, Baoxin (author), Huang, L. (author), Wen, Yuanqiao (author), Yang, Xue (author), Song, R. (author), van Gelder, P.H.A.J.M. (author)

Accurate fishing activity detection from the trajectories of fishing vessels can not only achieve high-precision fishery management but also ensure the reasonable and sustainable development of marine fishery resources. This paper proposes a new method to detect fishing vessels’ fishing activities based on the defined local dynamic parameters...

journal article 2023

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The Covariation of Color and Orange Fluorescence Instabilities in Yellow Sapphires

Yang, Yunqi (author), Wang, C. (author), Wang, Chengsi (author), Shen, Xibing (author), Yin, Ke (author), Chen, Tao (author), Shen, Andy Hsitien (author), Algeo, Thomas J. (author), Hong, Hanlie (author)

In recent years, some sapphires were found to fade in sunlight and to increase their color after UV irradiation. This unstable color phenomenon is attributed to the photochromism of corundum. The photochromic effect seriously affects the grading and evaluation of sapphires, although its mechanism is still uncertain. Here, we performed a set...

journal article 2023

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Use of thermal imaging to measure the quality of hand hygiene

Wang, C.W. (author), Jiang, W. (author), Yang, K. (author), Sarsenbayeva, Z. (author), Tag, B. (author), Dingler, T. (author), Goncalves, J. (author), Kostakos, V. (author)

Objectives: Hand hygiene has long been promoted as the most effective way to prevent the transmission of infection. However, due to low compliance and low quality of hand hygiene reported in previous studies, constant monitoring of hand hygiene compliance and quality among healthcare workers is crucial. This study investigated the feasibility...

journal article 2023

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Keyword Search Shareable Encryption for Fast and Secure Data Replication

Wang, Wei (author), Liu, Dongli (author), Xu, Peng (author), Yang, Laurence Tianruo (author), Liang, K. (author)

It has become a trend for clients to outsource their encrypted databases to remote servers and then leverage the Searchable Encryption technique to perform secure data retrieval. However, the method has yet to be considered a crucial need for replication on searchable encrypted data. It calls for challenging works on Dynamic Searchable...

journal article 2023

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Biosynthesis of cyclic ketones by a H₂O₂ self-sufficient cascade reaction

Wu, Bin (author), Wang, Xiangyun (author), Yang, Bo (author), Ma, Yunjian (author), Hollmann, F. (author), Wang, Yonghua (author)

In the present work we propose a bienzymatic cascade for the oxyfunctionalisation of cycloalkanes to cyclic alcohols/cyclic ketones. By combining a H₂O₂-dependent peroxygenase with a O₂-consuming and H₂O₂-producing alcohol oxidase an overall aerobic oxidation system was established. A...

journal article 2023

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Laser-Induced Graphene Formation on Chitosan Derivatives toward Ecofriendly Electronics

Huang, Qian Ming (author), Yang, Huiru (author), Wang, S. (author), Liu, X. (author), Tan, C. (author), Luo, Anxin (author), Xu, Siyuan (author), Zhang, Kouchi (author), Ye, H. (author)

Laser-induced graphene (LIG) has aroused a wide range of research interests ranging from micro-nano energy devices to the Internet of Things (IoT). Nevertheless, the non-degradability of most-used synthetic polymer carbon sources poses a serious threat to the environment. In this work, ecofriendly chitosan-based derivatives, including...

journal article 2023

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Optimal Design of Multilayer Optical Color Filters for Building-Integrated Photovoltaic (BIPV) Applications

Ortiz Lizcano, J.C. (author), Villa, Simona (author), Zhou, Y. (author), Frantzi, Georgia (author), Vattis, Kyriakos (author), Calcabrini, A. (author), Yang, G. (author), Zeman, M. (author), Isabella, O. (author)

Herein, the application of a comprehensive modeling framework that can help optimize the design of multilayered optical filters for coloring photovoltaic (PV) modules is presented based on crystalline silicon solar cells. To overcome technical issues related to the implementation of color filters (CFs) on PV modules, like glare and color...

journal article 2023

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Rapid Fabrication of High-Performance Flexible Pressure Sensors Using Laser Pyrolysis Direct Writing

Wang, S. (author), Zong, Qihang (author), Yang, Huiru (author), Tan, C. (author), Huang, Qianming (author), Liu, X. (author), Zhang, Kouchi (author), French, P.J. (author), Ye, H. (author)

The fabrication of flexible pressure sensors with low cost, high scalability, and easy fabrication is an essential driving force in developing flexible electronics, especially for high-performance sensors that require precise surface microstructures. However, optimizing complex fabrication processes and expensive microfabrication methods...

journal article 2023

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Effect of epoxy resin addition on properties and corrosion behavior of sintered joints in power modules serviced offshore

Wang, Xinyue (author), Yang, Zhoudong (author), Wang, Boya (author), Chen, Wei (author), Zhang, Kouchi (author), Zhang, Jing (author), Fan, J. (author), Liu, P. (author)

Power modules applied in offshore applications are facing risks of corrosion failures on die-attach materials due to high humidity and H₂S exposure. To investigate such corrosion behavior for sintered die-attach materials, we conducted a study with four groups of samples fabricated using copper and silver metal particles under...

journal article 2023

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Influence of unilateral low adhesion on transient wheel-rail rolling contact and wheel damages

Zhao, X. (author), Huang, Shuangchao (author), Yin, Shan (author), Yang, Jizhong (author), Yang, Z. (author), Tao, Gongquan (author), Wen, Zefeng (author)

A time-domain finite element model is developed to study the transient rolling contact of a driving wheelset over a curved track with Low Adhesion Zones (LAZs) shorter than 1.0 m. LAZs on one rail, i.e., unilateral LAZs occurring more likely, is treated for a speed up to 500 km/h. Structural vibrations of wheelset are analyzed to explain the...

journal article 2023

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Experimental study of dynamic response of passive flapping hydrofoil in regular wave

Wang, Junxian (author), Santhosh, Sabin (author), Colomés, Oriol (author), Capaldo, Matteo (author), Yang, Liang (author)

The hydrofoil harnesses wave energy and converts it into thrust. In this paper, we present the results of the first experimental study investigating the dynamic behavior of a fully passive foil with spring-loaded pitch and heave in regular waves. Our study shows that the real-time load signal is multi-harmonic with strong superposition,...

journal article 2023

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Slight Multielement Doping-Induced Structural Order-Disorder Transition for High-Performance Layered Na-Ion Oxide Cathodes

Guo, Hao (author), Zhao, C. (author), Gao, Jianxiang (author), Yang, Wenyun (author), Hu, Xufeng (author), Ma, Xiaobai (author), Jiao, Xuesheng (author), Yang, Jinbo (author), Sun, Kai (author), Chen, Dongfeng (author)

To realize concurrently the high-energy density and excellent cycling stability, maximum utilization of redox couple, minimization of detrimental phase transition, and structural degradation of O3-type layered oxide cathodes are critical for developing Na-ion batteries. Ni²⁺/Ni⁴⁺ redox couple showing multielectron...

journal article 2023

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Internal shear layer and vortex shedding development of a structured porous coated cylinder using tomographic particle image velocimetry

Arcondoulis, E.J.G. (author), Liu, Y. (author), Ragni, D. (author), Avallone, F. (author), Rubio Carpio, A. (author), Sedaghatizadeh, N. (author), Yang, Y. (author), Li, Z. (author)

Vortex shedding in the wake of a cylinder in uniform flow can be suppressed via the application of a porous coating; however, the suppression mechanism is not fully understood. The internal flow field of a porous coated cylinder (PCC) can provide a deeper understanding of how the flow within the porous medium affects the wake development. A...

journal article 2023

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Rapid extraction of pavement aggregate gradation based on point clouds using deep learning networks

Chen, Siyu (author), Chen, Can (author), Ma, Tao (author), Han, Chengjia (author), Luo, Haoyuan (author), Wang, Siqi (author), Gao, Y. (author), Yang, Yaowen (author)

Usage of asphalt mixture with poor gradation will most likely lead to pavement deficiency. There is a growing need for rapid and non-destructive methods to extract pavement aggregate gradation. In this study, a deep learning-based method that utilizes point clouds data for gradation extraction was proposed. Firstly, a data enhancement...

journal article 2023

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Investigation of concrete crack kinematics through probability density field of the location of acoustic emission events

Zhang, F. (author), Yang, Y. (author), Hendriks, M.A.N. (author)

Monitoring or identifying structural cracks is crucial for assessing the health of existing concrete structures. Key information about structural cracking encompasses the location of the crack and its kinematics, which include movements perpendicular and parallel to the crack face. Acoustic emission (AE) is a sensitive technique for detecting...

journal article 2023

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A macro prediction model for butt-welded (U)HSS connections with softened HAZ

Yan, R. (author), Xie, Hui (author), Yang, Fei (author), Veljkovic, M. (author), Zhao, Xiao lin (author)

This paper reports an investigation on the tensile resistance of fully-penetrated butt-welded connections of (ultra-)high-strength steels considering the strength softening of the heat-affected zone (HAZ) and the strengthening due to the transverse constraint. Firstly, a parametric study is carried out to analyse the tensile behaviour of...

journal article 2023