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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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我国上市城市商业银行经营绩效分析

福建金融管理干部学院学报 2016年第1期 45-53页

作者：吴宇溦江西财经大学会计学院江西南昌330013

上市城市商业银行是我国金融体系中重要的组成部分,要想在激烈的市场竞争中站稳脚跟,就必须提升效率和竞争力。本文选取了我国3家上市城市商业银行为研究对象,运用杜邦分析体系,从盈利能力、营运能力及偿债能力三个方面,对我国3家上市... 详细信息

上市城市商业银行是我国金融体系中重要的组成部分,要想在激烈的市场竞争中站稳脚跟,就必须提升效率和竞争力。本文选取了我国3家上市城市商业银行为研究对象,运用杜邦分析体系,从盈利能力、营运能力及偿债能力三个方面,对我国3家上市城市商业银行的经营绩效进行对比分析,找出影响其经营绩效的因素,并针对分析结果,提出相应的改进建议。

关键词：上市城市商业银行杜邦分析法经营绩效

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环境约束下我国上市证券公司经营效率评价

上海金融学院学报 2016年第2期 61-72页

作者：吴宇溦江西财经大学会计学院江西南昌330013

本文采用三阶段DEA研究方法,对2014年我国18家上市证券公司效率进行评价与区域差异分析。结果显示,公司性质、上市年限、公司规模、股权结构和经济发展水平等环境因素低估了上市证券公司的综合效率和纯技术效率,高估了中部地区规模效率... 详细信息

本文采用三阶段DEA研究方法,对2014年我国18家上市证券公司效率进行评价与区域差异分析。结果显示,公司性质、上市年限、公司规模、股权结构和经济发展水平等环境因素低估了上市证券公司的综合效率和纯技术效率,高估了中部地区规模效率以及低估了东、西部地区规模效率。在剔除环境因素影响后,广发证券、华泰证券和兴业证券由非有效转变为处在技术效率的前沿面上;长江证券和招商证券由规模报酬递减状态转向调整后的规模报酬递增状态。区域差异性比较的结果显示,在调整前后,东部地区的上市证券公司的综合效率和纯技术效率都显著高于中西部地区;规模效率则表现为东西部地区上升、中部地区下降的变动。

关键词：环境因素三阶段DEA 上市证券公司经营效率

疲劳与长期自然暴露后的复材空心桥面板受力性能

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玻璃钢／复合材料 2018年第11期 68-72页

作者：吴育蔚冯鹏刘兴清华大学土木工程系土木工程安全与耐久性教育部重点实验室北京100084

研究了由内部缠绕芯管、面层拉挤平板和外部缠绕组成的高性能复材空心桥面板的长期性能。对同一构件依次进行了200万次的疲劳试验加载和10年的自然暴露,之后进行了四点弯曲静载试验和中心点加载破坏试验。通过四点弯曲静载试验获得老化... 详细信息

研究了由内部缠绕芯管、面层拉挤平板和外部缠绕组成的高性能复材空心桥面板的长期性能。对同一构件依次进行了200万次的疲劳试验加载和10年的自然暴露,之后进行了四点弯曲静载试验和中心点加载破坏试验。通过四点弯曲静载试验获得老化后试件的抗弯和抗剪刚度,在加载过程中构件始终保持线弹性,构件的整体受力性能良好,组件间无错动或剥离现象。中心点加载试验模拟了车轮集中荷载,测定了集中荷载下的破坏模式和极限荷载。中心点加载的极限荷载为764. 57k N,破坏模式为加载点处的冲切破坏。研究表明,复合材料桥面板的长期受力性能能够满足工程应用的需求,并具有较好的耐久性。

关键词： FRP(纤维增强复合材料) 桥面板自然老化

科技型小微企业“硬”科技创业动力要素与孵化模式研究

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科学管理研究 2019年第1期37卷 70-73页

作者：吴玉伟施永川温州商学院职业发展与心理健康教研室浙江温州325035 温州大学创业人才培养学院浙江温州325035

在论述推动科技型中小企业硬科技创业重要意义基础上,分析了科技型小微企业进行硬科技创业的动力要素及作用机制,并提出"政府高质量主导"、"依托院所资源的投资平台"两种硬科技创业孵化模式。

关键词：科技型小微企业硬科技创业动力要素孵化模式

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基于结构计算数据挖掘的可视化系统研究

系统仿真学报 2002年第8期14卷 1015-1018页

作者：吴炜煜于巍李华清华大学土木工程系北京100084

为辅助工程设计人员理解结构分析计算得到的结果,根据工程应用的现状,提出有限元反演法并开发了一个基于结构计算数据挖掘的可视化试验系统3DVS。该系统的基本组成模块包括数据输入接口、结构建模、变换控制、真实感结构可视化、结构内... 详细信息

为辅助工程设计人员理解结构分析计算得到的结果,根据工程应用的现状,提出有限元反演法并开发了一个基于结构计算数据挖掘的可视化试验系统3DVS。该系统的基本组成模块包括数据输入接口、结构建模、变换控制、真实感结构可视化、结构内力场可视化、剖面应力显示等。本研究所开发的试验系统成功地将大量数据转化为设计人员易于理解的形式,解决了现有CAD软件中结构计算程序输出数据不能满足三维可视化表现要求的问题,实现了科学计算可视化技术在建筑工程设计领域的新的探索性应用,证实了本研究能够为工程结构仿真服务,具有重要的实用价值和广阔的应用前景。

关键词：结构计算数据挖掘建筑结构设计计算机辅助设计数据库可视化系统

Inhibiting ceramide synthase 5 expression in microglia decreases neuroinflammation after spinal cord injury

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Neural Regeneration Research 2025年第10期20卷 2955-2968页

作者： wei Zhang yubao Lu Ruoqi Shen Yingjie wu Chenrui Liu Xingxing Fang Liangming Zhang Bin Liu Limin Rong Department of Spine Surgery The Third Affiliated HospitalSun Yat-sen UniversityGuangzhouGuangdong ProvinceChina National Medical Products Administration(NMPA)Key Laboratory for Quality Research and Evaluation of Cell Products GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Quality Control of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina Guangdong Provincial Center for Engineering and Technology Research of Minimally Invasive Spine Surgery GuangzhouGuangdong ProvinceChina

Microglia,the resident monocyte of the central nervous system,play a crucial role in the response to spinal cord ***,the precise mechanism remains *** investigate the molecular mechanisms by which microglia regulate the neuroinflammatory response to spinal cord injury,we performed single-cell RNA sequencing dataset analysis,focusing on changes in microglial *** found that the MG1 subpopulation emerged in the acute/subacute phase of spinal cord injury and expressed genes related to cell pyroptosis,sphingomyelin metabolism,and neuroinflammation at high ***,we established a mouse model of contusive injury and performed intrathecal injection of siRNA and molecular inhibitors to validate the role of ceramide synthase 5 in the neuroinflammatory responses and pyroptosis after spinal cord ***,we established a PC12-BV2 cell co-culture system and found that ceramide synthase 5 and pyroptosis-associated proteins were highly expressed to induce the apoptosis of neuron *** ceramide synthase 5 expression in a mouse model of spinal cord injury effectively reduced ***,ceramide synthase 5-induced pyroptosis was dependent on activation of the NLRP3 signaling *** ceramide synthase 5 expression in microglia in vivo reduced neuronal apoptosis and promoted recovery of neurological ***2g7 formed a“bridge”between sphingolipid metabolism and ceramide synthase 5-mediated cell death by inhibiting the NLRP3 signaling ***,these findings suggest that inhibiting ceramide synthase 5 expression in microglia after spinal cord injury effectively suppressed microglial pyroptosis mediated by NLRP3,thereby exerting neuroprotective effects.

关键词： ceramide synthase 5 gasdermin D microglia neuroinflammation NLRP3 nuclear factor kappa B Pla2g7 pyroptosis sphingomyelin metabolism spinal cord injury

Oxygen vacancies enriched Ir/WOx catalysts for the directly chem-catalytic conversion of cellulose to ethanol

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Tungsten 2025年第1期7卷 88-99页

作者： yu-Jing Weng Zhao-Ying Ding Ying-Chao Li yuan-Feng wu yuan-Yang Xu Rui Chen Xiao-Lei Zhao Hai-Yong Wang Da-Lei Zhang yu-Long Zhang Henan Key Laboratory of Coal Green Conversion and International Joint Laboratory of Coal Clean Utilization College of Chemistry and Chemical Engineering Henan Polytechnic University Key Laboratory of Renewable Energy Guangzhou Institute of Energy Conversion Chinese Academy of Sciences Liaoning Institute of Energy Technology

Tungsten and its oxides are highly versatile catalysts with unique properties that hold great promise for a wide array of applications,including biological pathways and chemical *** chemo-catalysis of cellulose to ethanol presents a promising avenue for ethanol synthesis with the potential for enhanced efficiency compared to conventional methods,offering a sustainable and carbon-neutral alternative to existing petrochemical and biological ***,Ir/WOxcatalysts enriched with oxygen vacancies were meticulously prepared and demonstrated remarkable catalytic performance in converting cellulose to ethanol directly in the presence of tungstic *** catalyst achieved a high ethanol yield of 66.5%under optimal reaction conditions,approaching the theoretical yield limit of traditional ethanol *** results revealed the presence of oxygen defects,Bronsted/Lewis acidity,and Ir nanoclusters on the catalyst surface,working synergistically to facilitate the cascade catalysis of cellulose hydrolysis,sugar retro-aldol condensation reaction,and C2 intermediate hydrodeoxygenation to *** situ Fourier transform infrared spectrometer analysis confirmed the catalyst's ability to enhance the adsorption and activation of ethylene glycol for ethanol *** manipulating subtle structural features,this study offers a fresh perspective on tungsten group catalyst design and underscores the importance of synergistic effects among catalytic sites for the efficient production of ethanol from cellulose.

关键词： Cellulosic ethanol Chem-catalysis Hydrogenolysis Retro-aldol condensation Tungsten

Preparation of Co/S co-doped carbon catalysts for excellent methylene blue degradation

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International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 169-181页

作者： Haixu Li Haobo He Tiannan Jiang yunfei Du Zhichen wu Liang Xu Xinjie Wang Xiaoguang Liu Wanhua yu Wendong Xue School of Materials Science and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Jinyu Tongda Refractory Technologies Co. Ltd.Beijing 100085China

S and Co co-doped carbon catalysts were prepared via pyrolysis of MOF-71 and thiourea mixtures at 800℃at a mass ratio of MOF-71 to thiourea of 1:0.1 to effectively activate peroxymonosulfate(PMS)for methylene blue(MB)*** effects of two different mixing routes were identified on the MB degradation ***,the catalyst obtained by the alcohol solvent evaporation(MOF-AEP)mixing route could degrade 95.60%MB(50 mg/L)within 4 min(degradation rate:K=0.78 min^(-1)),which was faster than that derived from the direct grinding method(MOF-DGP,80.97%,K=0.39 min^(-1)).X-ray photoelectron spectroscopy revealed that the Co-S content of MOF-AEP(43.39at%)was less than that of MOF-DGP(54.73at%),and the proportion of C-S-C in MOF-AEP(13.56at%)was higher than that of MOF-DGP(10.67at%).Density functional theory calculations revealed that the adsorption energy of Co for PMS was -2.94 eV when sulfur was doped as C-S-C on the carbon skeleton,which was higher than that when sulfur was doped next to cobalt in the form of Co-S bond(-2.86 eV).Thus,the C-S-C sites might provide more contributions to activate PMS compared with ***,the degradation parameters,including pH and MOF-AEP dosage,were ***,radical quenching experiments and electron paramagnetic resonance(EPR)measurements revealed that ^(1)O_(2)might be the primary catalytic species,whereas·O~(2-)might be the secondary one in degrading MB.

关键词： advanced oxidation process alcohol solvent evaporation hydrogen bond S and Co co-doped carbon catalysts wastewater remediation