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Bioinspired Ultrasensitive Flexible Strain Sensors for Real‑Time Wireless Detection of Liquid Leakage

Nano-Micro Letters 2025年第3期17卷 310-327页

作者： Weilong Zhou Yu Du Yingying Chen congyuan zhang Xiaowei Ning Heng Xie Ting Wu Jinlian Hu Jinping Qu Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service Failure and Hubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSchool of Chemistry and Chemical EngineeringHuazhong University of Science and TechnologyWuhan 430074People’s Republic of China School of Materials Science and Engineering Wuhan Institute of TechnologyWuhan 430205People’s Republic of China Department of Biomedical Engineering City University of Hong KongHong KongSAR 999077People’s Republic of China

Liquid leakage of pipeline networks not only results in considerableresource wastage but also leads to environmental pollution and ecological *** response to this global issue, a bioinspired superhydrophobic thermoplastic polyurethane/carbon nanotubes/graphene nanosheets flexible strain sensor (TCGS) hasbeen developed using a combination of micro-extrusion compression molding andsurface modification for real-time wireless detection of liquid leakage. The TCGSutilizes the synergistic effects of Archimedean spiral crack arrays and micropores,which are inspired by the remarkable sensory capabilities of scorpions. This designachieves a sensitivity of 218.13 at a strain of 2%, which is an increase of 4300%. Additionally, it demonstrates exceptional durability bywithstanding over 5000 usage cycles. The robust superhydrophobicity of the TCGS significantly enhances sensitivity and stability indetecting small-scale liquid leakage, enabling precise monitoring of liquid leakage across a wide range of sizes, velocities, and compositionswhile issuing prompt alerts. This provides critical early warnings for both industrial pipelines and potential liquid leakage scenariosin everyday life. The development and utilization of bioinspired ultrasensitive flexible strain sensors offer an innovative and effectivesolution for the early wireless detection of liquid leakage.

关键词： Thermoplastic polyurethane Bioinspired Cracks Liquid leakage Flexible strain sensor

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SVG矢量图模拟渲染效果绘制飞机开关图解

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科技创新导报 2021年第9期18卷 12-16页

作者：张丛远上海飞机客户服务有限公司上海200241

本文分析了未来电子飞行手册中飞机面板插图的需求特点,以及在飞行类手册中插入开关图标来替代纯文字描述对于航空安全的积极意义。介绍了如何用Adobe Illustrator软件制作SVG格式矢量图,结合滤镜功能的技术来绘制飞机飞行类手册开关插... 详细信息

本文分析了未来电子飞行手册中飞机面板插图的需求特点,以及在飞行类手册中插入开关图标来替代纯文字描述对于航空安全的积极意义。介绍了如何用Adobe Illustrator软件制作SVG格式矢量图,结合滤镜功能的技术来绘制飞机飞行类手册开关插图,获得接近渲染图的高美观度、接近矢量图的高清晰度和低数据量,提升客户体验的同时提高飞行手册插图长期更改维护的效率。

关键词：飞行类手册面板插图 SVG 飞机开关

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论构建有效的大股东治理机制

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改革与战略 2016年第3期32卷 136-139页

作者：刘孟晖张藂元郑州大学商学院河南郑州450001

中国公司股权集中现象比较突出,大股东普遍存在。构建有效的大股东治理机制,是股权集中公司所面临的关键治理问题。文章从大股东治理机制失效的内在根源进行分析,得出了失效的内在根源在于制衡和监督机制的虚置或缺失,公司出现了严重的... 详细信息

中国公司股权集中现象比较突出,大股东普遍存在。构建有效的大股东治理机制,是股权集中公司所面临的关键治理问题。文章从大股东治理机制失效的内在根源进行分析,得出了失效的内在根源在于制衡和监督机制的虚置或缺失,公司出现了严重的内部人控制现象,中小股东和相关方利益难以保障。针对这个内在根源,文章从内部治理机制和外部治理机制两个方面入手,提出了构建有效的大股东治理机制的途径。

关键词：大股东内部治理机制外部治理机制

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矩形管弯曲实验及有限元仿真

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机械制造与自动化 2014年第4期43卷 105-107,117页

作者：张丛远徐岩徐驰南京航空航天大学机电学院江苏南京210016 中航工业昌河飞机工业(集团)有限责任公司江西景德镇333002

数控绕弯机是一种管材弯曲成形装置,能够快速高效地实现同种规格弯管的大批量生产。在批量生产之前,各模具夹紧力以及芯棒的尺寸、位置仍然需要耗费漫长的时间进行人工调试,众多复杂的物理因素相互影响,共同决定着弯管成形的品质。用有... 详细信息

数控绕弯机是一种管材弯曲成形装置,能够快速高效地实现同种规格弯管的大批量生产。在批量生产之前,各模具夹紧力以及芯棒的尺寸、位置仍然需要耗费漫长的时间进行人工调试,众多复杂的物理因素相互影响,共同决定着弯管成形的品质。用有限元软件ABAQUS对薄壁矩形管的弯曲过程进行仿真、实验验证,讨论各种物理因素的相互关联,简述不同缺陷情况下各个模具及芯棒的调试方法,进而为实际操作数控弯管机的过程中可能出现的各种问题提供解决方案。

关键词：矩形管弯管有限元仿真

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宣钢4号高炉长寿技术实践

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河南冶金 2016年第5期24卷 26-28,38页

作者：张洪海王聪渊褚润林张利波刘宝洋河北钢铁集团宣钢公司

阐述了宣钢4号高炉长寿设计与生产实践工作。高炉从整体设计与耐材选择,长期稳定控制,炉缸维护三方面入手,从设计施工到操作管理,建立完善的高炉长寿管理机制,实现了高炉长寿高效生产。

关键词：高炉长寿稳定控制

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New indicators from bedding-parallel beef veins for the fault valve mechanism

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Science China Earth Sciences 2015年第8期58卷 1320-1336页

作者： zhang Bo YIN congyuan GU ZhiDong zhang JinJiang YAN ShuYu WANG Yang The Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space SciencesPeking University Exploration & Production Research Institute SINOPEC

Beef structures(bedding-parallel veins of fibrous calcite)are widespread within the Lower Triassic carbonate rocks in the Sichuan Basin of China,especially within clay-rich strata of low *** the veins,fibrous calcite occurs in the outer zones,and coarse equant calcite in the inner *** least two generations of calcite crystallization took place during aqueous alteration,at the same time as deformation recorded by the *** first-generation calcite fibers are at steep angles to the hydrocarbon-bearing host beds,and they grew vertically against the force of gravity at a time when the source rocks were ***-generation calcite occurs as coarse equant grains that sealed pores via localized fluid flow during horizontal tectonic compression,so that shear stresses acted at the fracture *** of the host rock was accommodated in part by dissolution-precipitation creep(DPC),grain rotation,and grain slippage,recorded in crystallographic preferred orientations(CPOs)of the host calcite grains beside the crack *** beef veins formed during high pore-fluid overpressures along *** propose that the bedding-parallel veins with beef structures are evidence of a"crack-seal slip"fault valve process during hydrocarbon *** hydrocarbon-bearing calcite beef structure may be a good indicator of oil or gas migration,and of the flow direction of aqueous solutions.

关键词： calcite vein beef structure crack-seal slip EBSD carbonate rock Sichuan Basin

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Heuristic Methods of Calibration-Free Laser-Induced Breakdown Spectroscopy in Quantitative Analysis 36

Heuristic Methods of Calibration-Free Laser-Induced Breakdow...

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第36届中国控制会议

作者： Haibin zhang congyuan Pan Gang Wu Department of Automation University of Science & Technology of China National Synchrotron Radiation Laboratory University of Science & Technology of China

ISBN: (纸本)9781538629185

Calibration-free Laser-induced Breakdown Spectroscopy(CF-LIBS) has caused a heated discussion since it was proposed in 1999,and separate works were presented for better quantitative analysis *** this article,we introduce a particle swarm optimization algorithm to search for the actual element number densities in *** main thought is that the actual element number densities and the experimental spectra can deduce to the same plasma properties such as electron number density ne and number density ratios of different ***,we need to find the proper actual element number densities based on the experimental *** addition,we present a simplified method to reduce the computation *** the experiment,we focus on the determination of Cu,Fe,Mn,Ni,Al in the copper matter sample.

关键词： CF-LIBS Quantitative Analysis Particle Swarm Optimization Optimization Problem

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ArtForm在浮雕产品设计和加工中的应用

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河南科技 2019年第11期38卷 43-45页

作者：张智涛吕偿陈高峰张聪元叶潮锦陈杨霖广东白云学院机电工程学院

本文采用ArtForm二维绘图、ArtForm三维浮雕(建模)、ArtForm编程和精雕数控加工中心四步一体化方式,快捷、高效地完成浮雕产品的设计和加工,并得出ArtForm在现代数控编程加工领域中具有先进的技术水平和可持续发展的重要结论,以期为相... 详细信息

本文采用ArtForm二维绘图、ArtForm三维浮雕(建模)、ArtForm编程和精雕数控加工中心四步一体化方式,快捷、高效地完成浮雕产品的设计和加工,并得出ArtForm在现代数控编程加工领域中具有先进的技术水平和可持续发展的重要结论,以期为相关学者的研究提供参考。

关键词： ArtForm 浮雕设计浮雕加工

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Electrolyte dependence for the electrochemical decarboxylation of medium-chain fatty acids (n-octanoic acid) into fuel on Pt electrode

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Materials Reports(Energy) 2024年第2期4卷 64-70页

作者： Zhenmin zhang Dezhang Ren Dian zhang Tiantian Hu congyuan Zeng Nengneng Xu Zhibao Huo Jinli Qiao College of Marine Ecology and Environment Shanghai Ocean UniversityShanghai201306PR China Department of Mechanical Engineering Southern University and A&M CollegeBaton RougeLA70807USA State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Environmental Science and EngineeringDonghua UniversityShanghai201620PR China Shanghai Institute of Pollution Control and Ecological Security Shanghai200092PR China

The deoxygenation of organic acids, important biomass feedstocks and derivatives, to synthesize hydrocarbon products under mild electrochemical conditions, holds significant importance for the production of carbon-neutral biofuels. There is still limited research on the influential factors of the electrochemical decarboxylation reaction of medium-chain fatty acids. In this study, n-octanoic acid (OA) was chosen as the research subject to investigate the electrochemical decarboxylation behavior of OA on a platinum electrode, focusing on the influence of different alkali metal cations (Li^(+), Na^(+), K^(+)), common anions (SO^(4)^(2−), Cl^(−)), and electrolyte pH. It was found that KOH as an electrolyte exhibited the best performance for OA. Possibly, the larger size of K^(+) increased the alkalinity of the electrode surface, facilitating OA deprotonation. LiOH electrolyte reduced the solubility of OA, thereby inhibiting the decarboxylation reaction. SO^(4)^(2−) exhibited a weak promoting effect on the decarboxylation reaction of OA, while Cl^(−) showed no adverse effect although Cl^(−) may adsorb on the electrode surface. Furthermore, unlike short-chain fatty acids, medium-chain OA can only achieve efficient decarboxylation under alkaline conditions due to its solubility properties. This study provides references and foundations for future efforts to enhance the efficiency of electrochemical decarboxylation synthesis of hydrocarbon biofuels from medium-chain fatty acids.

关键词： Fatty acids Kolbe reaction Decarboxylation Hydrocarbon Electrolyte

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Polystage deformation of of Yingba metamorphic core complex during Late Mesozoic: Structures, microfabrics and textures

Polystage deformation of of Yingba metamorphic core complex ...

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2014年中国地球科学联合学术年会——专题50：华北克拉通演化与成矿

作者： congyuan Yin Bo zhang Baofu Han Ministry of Education Key Laboratory of Orogenic Belts and Crustal Evolution School of Earth and Space Sciences Peking University

The Yingba metamorphic core complex(YMCC)is located in the Central Asian Orogenic Belt(CAOB)to the north and the North China and Tarim Craton to the south(Fig.2a and b).For its unique geographical location,YMCC is critical to understand the intracontinental deformation and *** the basis of our structure analyses,we conclude that this zone is characterized with four stages of deformation(D1—D4).D1

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