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

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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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轻质金属泡沫夹芯曲板的抗爆炸冲击响应研究

固体力学学报 2017年第5期38卷 391-399页

作者：秦庆华张建勋艾伟龙王铁军西安交通大学航天航空学院机械结构强度与振动国家重点实验室陕西省航天结构振动控制工程实验室西安710049

夹芯结构具有高比强度、高比刚度和优异的吸能能力,已经被广泛应用于工程结构用来抵御高强度的爆炸冲击载荷.论文采用有限元数值模拟方法研究了爆炸载荷作用下四边固支夹芯曲板的动力响应.比较了同等质量下夹芯曲板、夹芯平板、实体曲... 详细信息

夹芯结构具有高比强度、高比刚度和优异的吸能能力,已经被广泛应用于工程结构用来抵御高强度的爆炸冲击载荷.论文采用有限元数值模拟方法研究了爆炸载荷作用下四边固支夹芯曲板的动力响应.比较了同等质量下夹芯曲板、夹芯平板、实体曲板和实体平板四种结构的抗爆炸冲击性能,讨论了不同曲率和非对称因子对结构动力响应的影响,得到了使得夹芯曲板抗爆炸性能最佳的非对称因子.研究结果表明:夹芯曲板的抗爆炸冲击性能优于等质量的夹芯平板、实体曲板和实体平板结构,增大夹芯曲板的曲率能够提高结构的抗爆炸冲击性能.

关键词：夹芯曲板金属泡沫爆炸载荷动力响应结构塑性

基于蒙特卡罗法的黄土滑坡概率与可靠度分析——以榆林市朝阳路滑坡为例

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灾害学 2025年第1期40卷 74-79页

作者：黄立新李成郭伟龙陕西工程勘察研究院有限公司陕西西安710068 陕西省地质环境监测总站(陕西省地质灾害中心) 陕西西安710054

基于计算滑坡概率的蒙特卡罗法,该文以黄土高原地区的榆林市朝阳路滑坡为研究对象,通过野外调查、室内试验和综合研究,分析了黄土黏聚力和内摩擦角等多种条件下的安全系数分布、失稳概率和可靠度,探讨了参数相关性对于滑坡可靠度的影响... 详细信息

基于计算滑坡概率的蒙特卡罗法,该文以黄土高原地区的榆林市朝阳路滑坡为研究对象,通过野外调查、室内试验和综合研究,分析了黄土黏聚力和内摩擦角等多种条件下的安全系数分布、失稳概率和可靠度,探讨了参数相关性对于滑坡可靠度的影响,并进行了对黏聚力和内摩擦角的敏感性分析。研究发现,该滑坡为黄土高原区典型降雨诱发型,当同时考虑黏聚力和内摩擦角的变化时,滑坡可靠度指数为1.35,失稳概率为8.83%,安全系数介于0.794~1.305;与同单一变量情况下相比,多个变量分析计算的可靠性指数显著减小,标准偏差明显增大,滑坡失稳概率升高;不同参数相关性条件下,滑坡失稳概率、可靠度和安全系数的标准偏差不同;滑坡的稳定性系数对于不同土性参数的敏感性存在差异。该文基于研究结果提出了相应的防治措施,为黄土高原地区滑坡防治和危险性评估提供科学依据。

关键词：黄土滑坡蒙特卡罗失稳概率可靠度相关性

Runoff variations in the Yangtze River Basin and sub-basins based on GRACE, hydrological models, and in-situ data

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Earth and Planetary Physics 2022年第3期6卷 228-240页

作者： weilong Rao WenKe Sun University of Chinese Academy of Sciences Beijing 100049China

Water budget closure is a method used to study the balance of basin water storage and the dynamics of relevant hydrological components(e.g.,precipitation,evapotranspiration,and runoff).When water budget closure is connected with terrestrial water storage change(TWSC)estimated from Gravity Recovery and Climate Experiment(GRACE)data,variations in basin runoff can be understood *** this study,total runoff variations in the Yangtze River Basin(YRB)and its sub-basins are examined in detail based on the water budget closure *** compare and combine mainstream precipitation and evapotranspiration models to determine the best estimate of precipitation minus *** addition,we consider human water consumption,which has been neglected in earlier studies,and discuss its *** evaluate the effectiveness and accuracy of the combined hydrological models in estimating subsurface runoff,we collect discharge variations derived from in situ observations in the YRB and its sub-basins and compare these data with the models’final estimated runoff *** estimated runoff variations suggest that runoff over the YRB has been increasing,especially in the lower sub-basins and in the post-monsoon season,and is accompanied by apparent terrestrial water loss.

关键词： runoff discharge Yangtze River Basin water budget closure GRACE

Source and distribution of mercury in natural gas of major petroliferous basins in China

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Science China Earth Sciences 2020年第5期63卷 643-648页

作者： Quanyou LIU weilong PENG Jian LI Xiaoqi WU State Key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China Research Institute of Petroleum Exploration and Production SINOPECBeijing 100083China Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China Research Center of Exploration and Development in Sichuan Basin Research Institute of Petroleum Exploration and ProductionSINOPECChengdu 610041China

Based on the analysis of the natural gas samples of 146 wells from four major petroliferous basins of China,the source and distribution of mercury in natural gas in major petroliferous basins of China were *** have shown that the mercury concentration of natural gas in petroliferous basins of China varies widely,ranging from 0.01 to 4050μg/m^*** gas well with the highest mercury concentration is in the Xushen gas field in the Songliao *** mercury concentration in the craton basin is relatively low,and the secondary gas reservoir in the Tarim Basin has the lowest mercury *** the rift basin,due to the presence of deep faults which cut the basement and mixing effects of deep fluids,the mercury concentration in natural gas may be abnormally high,*** Xushen gas field in the Songliao *** relatively stable basins where deep and large faults do not develop,mercury is primarily of organic *** rift basins where deep fluids are mixed with gas reservoirs,mercury in natural gas may mainly come from the deep fluids and is characterized by abnormally high mercury concentration and R/Ra values.

关键词： Natural gas Mercury concentration Petroliferous basin Xushen gas field Deep fluids

Guest-adaptive chiral coassembly of a conformationally locked host into supramolecular boxes and ladders through arene-perfluoroarene force

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Science China Chemistry 2024年第10期67卷 3482-3492页

作者： weilong Ma Xinyi Li aiyou Hao Pengyao Xing School of Chemistry and Chemical Engineering Shandong UniversityJinan 250100China

Unveiling the role of weak non-covalent forces in chiral self-assembly is pivotal in the design and fabrication of functional chiroptical *** nature of arene-perfluoroarene(AP)force is the electrostatic attraction betweenπ-hole andπplanes of perfluoroarenes and polyaromatic hydrocarbons(PAHs),which is emerging in constructing supramolecular motifs and coassembled optical *** this work,we reveal the potential of AP forces in building diversified levels of chiral coassemblies adaptive to the geometries of *** naphthalene-F8was covalently conjugated with a chiral amine,which folded into a semi-rectangular geometry via two intramolecular F···H *** of naphthalene,anthracene,pyrene,carbazole,perylene and benzoperylene were introduced to afford coassemblies in the crystalline state.X-ray structures suggest the formation of supramolecular boxes that encapsulate the PAHs with a 2:1 stoichiometric ratio,as well as the formation of consecutive layered ladders with a 1:1 stoichiometric *** preference is adaptive to the geometries of PAHs,and experimental and computational results evidenced the ladder structures possess strong binding *** this top,the selective chiral recognition in the mixtures of PAHs was realized,which shows promising applications in the separation of PAHs and rational design of crystalline chiroptical materials.

关键词： arene-perfluoroarene force coassembly supramolecular chirality selectivity

放牧对阿尔泰山哈巴河地区草地植物群落稳定性与多样性及其生物量关系的影响

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水土保持研究 2025年第1期32卷 82-91页

作者：曾国燕叶茂李苗苗陈维龙张西新疆师范大学地理科学与旅游学院乌鲁木齐830054 新疆干旱区湖泊环境与资源实验室乌鲁木齐830054

[目的]研究阿尔泰山哈巴河地区草地植物的群落特征以及植物多样性、地上生物量与群落稳定性关系变化,为哈巴河地区制定合理的放牧制度提供数据支撑。[方法]2020-2022年在阿尔泰山哈巴河的夏季牧场选取18个有代表性的固定样地做调查,调... 详细信息

[目的]研究阿尔泰山哈巴河地区草地植物的群落特征以及植物多样性、地上生物量与群落稳定性关系变化,为哈巴河地区制定合理的放牧制度提供数据支撑。[方法]2020-2022年在阿尔泰山哈巴河的夏季牧场选取18个有代表性的固定样地做调查,调查样地中物种数量、盖度和高度等,测定样地中的地上生物量、β多样性(Sφrensenβ多样性指数和Jaccardβ多样性指数)、物种多样性(Margalef丰富度指数、Simpson优势度指数、Shannon-Wiener多样性指数和Alatalo均匀度指数)和***群落稳定性,分析放牧前后群落稳定性与植物多样性及其生物量的关系。[结果](1)阿尔泰山哈巴河地区草地群落分布物种30种,隶属14科,以菊科、蔷薇科和禾本科居多;(2)放牧后哈巴河地区草地的多样性指数、盖度、植株高度和地上生物量都有明显的下降趋势;(3)放牧前哈巴河地区草地群落稳定性与Margalef物种丰富度指数、Simpson优势度指数和Shannon-Wiener多样性指数均呈极显著正相关(p<0.01)。放牧后哈巴河地区草地群落稳定性与Simpson优势度指数呈显著正相关(p<0.05);(4)放牧前哈巴河地区草地群落稳定性与地上生物量关系呈显著正相关(p<0.05),放牧后哈巴河地区草地群落稳定性与地上生物量关系不相关。[结论]放牧后草地群落稳定性与多样性、生物量关系发生了明显的变化,放牧对群落稳定性的影响较大,在一定程度上降低了群落的稳定性,但群落总体处于稳定状态。

关键词：哈巴河地区群落稳定性物种多样性生物量

Quantitative Measurement of Bedding Orientation Using Remote Sensing Data:Yili Basin,Northwest China

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Journal of Earth Science 2018年第3期29卷 689-694页

作者： Zhenghai Wang weilong Lin Ruxin Ding School of Earth Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes Guangzhou 510275China

Bedding orientation measurement is a remote sensing application used in the field of geology, but the results are often unsatisfactory when the bed is dislocated along the strike direction. This paper proposes a new method called multiple-line method that is designed to improve bedding orientation measurement. This technique uses the bed as a vector, and fits the vectors as a plane to obtain the bedding orientation. This study employs the case of Yili Basin and measures 25 bedding orientations using the multiple-point and multiple-line methods, respectively. The result shows that the errors from the multiple-line method are mostly smaller than those from the multiple-point method when a bed is discontinuous.

关键词： bedding orientation multipsle-line method remote sensing Yili Basin.

脱落酸代谢及信号转导对胡萝卜CO_(2)加富的响应分析

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核农学报 2025年第2期39卷 275-284,I0008,I0009页

作者：宋红霞高崇真朱伟龙路强宋甜月山西农业大学园艺学院山西太谷030801

胡萝卜作为世界十大蔬菜之一,随着设施农业的发展实现了周年供应。增施CO_(2)可提高胡萝卜产量和类胡萝卜素积累,而脱落酸(ABA)是调控植物生长和响应外界刺激的重要激素。为了探究胡萝卜ABA代谢和信号转导响应CO_(2)加富的分子机制,本... 详细信息

胡萝卜作为世界十大蔬菜之一,随着设施农业的发展实现了周年供应。增施CO_(2)可提高胡萝卜产量和类胡萝卜素积累,而脱落酸(ABA)是调控植物生长和响应外界刺激的重要激素。为了探究胡萝卜ABA代谢和信号转导响应CO_(2)加富的分子机制,本研究分析CO_(2)加富与对照条件下ABA含量和9-顺式环氧类胡萝卜素双加氧酶(NCED)含量的变化;利用RNA-Seq分析CO_(2)加富条件下脱落酸代谢和信号转导过程中参与的关键基因表达情况。结果发现,增施CO_(2)抑制了ABA的合成,降低了酶含量;转录组分析共获得482个差异表达基因(DEGs),其中16个直接响应ABA代谢或与ABA信号转导相关,7个与ABA代谢相关,9个参与ABA信号通路,初步揭示了ABA信号和CO_(2)感知之间的分子关联,ABA不仅高度响应CO_(2)浓度变化,而且参与信号转导过程,调控生长发育。本研究结果为CO_(2)加富条件下ABA积累机制和调控ABA信号转导机制探究提供了参考。

关键词：胡萝卜脱落酸 CO_(2)加富信号转导

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