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Rational design of natural leather-based water evaporator for electricity generation and functional applications

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Journal of Energy Chemistry 2024年第9期96卷 129-144页

作者： Bingyuan Zhang xiaoyu Guan Qingxin han Haoxiang Guo Sai Zheng Xuhui Sun Afnan H.El-Gowily Mohammed A.Abosheasha Yanxia Zhu Motoki Ueda Meng An Haojun Fan Yoshihiro Ito College of Bioresources Chemical and Materials Engineering Key Laboratory of Auxiliary Chemistry and Technology for Chemical IndustryMinistry of EducationShaanxi Collaborative Innovation Center of Industrial Auxiliary Chemistry and TechnologyShaanxi University of Science&TechnologyXi'an 710021ShaanxiChina Nano Medical Engineering Laboratory RIKEN Cluster for Pioneering Research2-1 HirosawaWako 351-0198SaitamaJapan Key Laboratory of Leather Chemistry and Engineering(Sichuan University) Ministry of EducationChengdu 610065SichuanChina College of Mechanical and Electrical Engineering Shaanxi University of Science&TechnologyXi'an 710021ShaanxiChina Biochemistry Division Chemistry DepartmentFaculty of ScienceTanta UniversityTanta 31527Egypt

In recent years,water evaporation-induced electricity has attracted a great deal of attention as an emerging green and renewable energy harvesting *** abundant materials have been developed to fabricate hydrovoltaic devices,the limitations of high costs,inconvenient storage and transport,low environmental benefits,and unadaptable shape have restricted their wide ***,an electricity generator driven by water evaporation has been engineered based on natural biomass leather with inherent properties of good moisture permeability,excellent wettability,physicochemical stability,flexibility,and *** numerous nano/microchannels together with rich oxygen-bearing functional groups,the natural leather-based water evaporator,Leather_(Emblic-NPs-SA/CB),could continuously produce electricity even staying outside,achieving a maximum output voltage of∼3 V with six-series ***,the leather-based water evaporator has enormous potential for use as a flexible self-powered electronic floor and seawater demineralizer due to its sensitive pressure sensing ability as well as its excellent photothermal conversion efficiency(96.3%)and thus fast water evaporation rate(2.65 kg m^(−2)h^(−1)).This work offers a new and functional material for the construction of hydrovoltaic devices to harvest the sustained green energy from water evaporation in arbitrary ambient environments,which shows great promise in their widespread applications.

关键词： Energy conversion Water evaporation-induced electricity Functional leather Flexible self-powered sensor Desalination

Lactate regulates major zygotic genome activation by H3K18 lactylation in mammals

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National Science Review 2024年第2期11卷 124-134页

作者： Jingyu Li Weibo Hou Qi Zhao Wei han Hongdi Cui Songling Xiao Ling Zhu Jiadan Qu xiaoyu Liu Weitao Cong Jingling Shen Yuzheng Zhao Shaorong Gao Guoning Huang Qingran Kong Chongqing Key Laboratory of Human Embryo Engineering Center for Reproductive Medicine Chongqing Health Center for Women and ChildrenWomen and Children's Hospital of Chongqing Medical University Oujiang Laboratory Zhejiang Provincial Key Laboratory of Medical Genetics Key Laboratory of Laboratory MedicineMinistry of EducationSchool of Laboratory Medicine and Life Sciences Wenzhou Medical University Frontier Science Center for Stem Cell Research School of Life Sciences and Technology Tongji University School of Pharmaceutical Science Wenzhou Medical University Institute of Life Sciences College of Life and Environmental Sciences Wenzhou University Optogenetics&Synthetic Biology Interdisciplinary Research Center State Key Laboratory of Bioreactor Engineering Shanghai Frontiers Science Center of Optogenetic Techniques for Cell Metabolism School of Pharmacy East China University of Science and Technology

Lactate is present at a high level in the microenvironment of mammalian preimplantation embryos in vivo and in vitro. However, its role in preimplantation development is unclear. Here, we report that lactate is highly enriched in the nuclei of early embryos when major zygotic genome activation(ZGA) occurs in humans and mice. The inhibition of its production and uptake results in developmental arrest at the 2-cell stage, major ZGA failure, and loss of lactate-derived H3K18lac, which could be rescued by the addition of Lac-Co A and recapitulated by overexpression of H3K18R mutation. By profiling the landscape of H3K18lac during mouse preimplantation development, we show that H3K18lac is enriched on the promoter regions of most major ZGA genes and correlates with their expressions. In humans, H3K18lac is also enriched in ZGA markers and temporally concomitant with their expressions. Taken together, we profile the landscapes of H3K18lac in mouse and human preimplantation embryos, and demonstrate the important role for H3K18lac in major ZGA, showing that a conserved metabolic mechanism underlies preimplantation development of mammalian embryos.

关键词： mammalian preimplantation development lactate epigenetic remodeling histone lactylation zygotic genome activation

Development the GFP Expression Vector of Cucurbit chlorotic yellows virus

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Development the GFP Expression Vector of Cucurbit chlorotic ...

省级统筹、治薄扶弱,推动学前教育事业快速发展——辽宁省政府促进学前教育事业发展的政策举措分析

中国植物病理学会2017年学术年会

作者：施艳 Sun Xinyan Wei Ying han xiaoyu Chen Linlin Wang Zhenyue College of Plant Protection Henan Agricultural University

Cucurbit chlorotic yellows virus(CCYV),the recently found cucurbit-infecting crinivirus in the family Closteroviridae is among the largest single stranded positive-sense RNA *** bipartite RNA genome is comprised of 8607-nucleotide[nt](RNA1 and 8041-nt RNA2).Recent studies on CCYV were hampered by the lack of reverse genetic *** of full-length infectious cDNA clones will facilitate the investigation of viral determinants in virus replication and movement,as well as the interactions between viral proteins and host *** previous study developed two sets of full-length CCYV eDNA clones under the control of the T7 RNA polymerase and 35 S *** we constructed CCYV GFP expression vector using "add a gene" strategy according to the previous study on the closterovirus Citrus tristeza virus suggesting the "add a gene" strategy is better than ORF substitution and ORF fusion,and tested the GFP fluorescence on systemic leaves of cucumber ***-five days after agroinfiltration of pCCYVGFP together with pCBCCYVRNA1 and pCBP1/HC-Pro in Cucumis sativus,GFP fluorescence was observed using epifluorescence *** was worth noting that the GFP fluorescence was not only detectable in the leaf veins but also in the surrounding mesophyll tissues which is consistent with the previous study on the CCYV localization in leaf lamina using *** of the three different constructs,it was found that pCCYVGFPinoculated cucumber leaves showed the cell spread at 25 dpi,while the other two constructs were mainly in isolated ***,the fluorescence cell number of pCCYVGFP was significantly higher than pCCYVGFP.

关键词： CCYV Infectious clone GFP expression

来源： cnki会议评论

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学前教育研究 2010年第8期 3-9页

作者：李琳韩小雨北京师范大学教育学部北京100875

以政府为主导大力推进学前教育普及是当前我国学前教育事业改革与发展的战略方针。近年来,辽宁省充分认识到学前教育的战略地位及其重大价值,确立了政府主导、治薄扶弱的宏观发展思路,通过明确将学前教育列入经济社会与教育发展总体规... 详细信息

以政府为主导大力推进学前教育普及是当前我国学前教育事业改革与发展的战略方针。近年来,辽宁省充分认识到学前教育的战略地位及其重大价值,确立了政府主导、治薄扶弱的宏观发展思路,通过明确将学前教育列入经济社会与教育发展总体规划、建立高层次强力度的政策保障体系、优先大力推进农村学前教育、督政与督学相结合、创新督导评估体制等重大政策举措,有力推动了全省学前教育事业发展,其经验对我国其他地区学前教育事业改革与发展具有重要的启示意义与借鉴价值。

关键词：辽宁学前教育政府主导省级统筹治薄扶弱农村优先

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随机失谐星载天线振动局部化的统计特性分析

西北工业大学学报 2015年第4期33卷 603-608页

作者：聂良贺尔铭韩晓宇马小飞西北工业大学航空学院陕西西安710072 中国航天科技集团公司五院西安分院陕西西安710100

为了研究随机失谐对星载天线结构动力学特性的影响,本文建立了径向肋天线结构的集中参数模型,基于Monte Carlo数值计算方法研究了随机失谐天线的模态局部化与受迫振动响应局部化的统计特性。研究结果表明:失谐强度增大会使结构的各阶共... 详细信息

为了研究随机失谐对星载天线结构动力学特性的影响,本文建立了径向肋天线结构的集中参数模型,基于Monte Carlo数值计算方法研究了随机失谐天线的模态局部化与受迫振动响应局部化的统计特性。研究结果表明:失谐强度增大会使结构的各阶共振频率范围变宽,从而使结构发生共振的危险机率增大;失谐强度增大或耦合刚度减小都会使结构的模态局部化程度增大,其中质量失谐对高阶模态振型影响较大,而刚度失谐对低阶模态振型影响较大;失谐限制了天线结构中振动能量的传播,适当增大径向肋间的耦合刚度会使原本限制在少数径向肋上的振动能量均匀传播到所有肋上。

关键词：径向肋天线随机失谐 Monte Carlo 振动局部化

基于知识图谱的学校法律治理问题研究可视化分析

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现代教育管理 2017年第8期 65-70页

作者：梁成韩小雨海南省教育厅海南海口570204

近年来,学校法律治理研究的相关文献数量呈上升发展态势,已经形成了核心作者群和高产机构群,研究集中于公立高校与政府的法律关系,民办学校、公立中小学校和教师的法律地位,学生伤害事故与法律责任以及学校内部治理结构等,还应在研究对... 详细信息

近年来,学校法律治理研究的相关文献数量呈上升发展态势,已经形成了核心作者群和高产机构群,研究集中于公立高校与政府的法律关系,民办学校、公立中小学校和教师的法律地位,学生伤害事故与法律责任以及学校内部治理结构等,还应在研究对象、研究方法、研究视角、人才队伍建设等方面进行深化研究。

关键词：学校法律研究热点知识图谱

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U形渡槽流固耦合有限元建模与响应谱分析

人民黄河 2017年第9期39卷 99-102,107页

作者：韩晓育王俊黄河水利职业技术学院河南开封475004 小流域水利河南省高校工程技术研究中心河南开封475004

渡槽结构的振动特性分析是进行结构抗震设计与安全评价的重要内容之一。结合景泰川电力提灌二期工程的特点,考虑实际工程输水过程中水体与槽体间的耦合作用,采用ANSYS软件中融合的流固耦合模块建立了渡槽三维有限元模型,并对3种不同水... 详细信息

渡槽结构的振动特性分析是进行结构抗震设计与安全评价的重要内容之一。结合景泰川电力提灌二期工程的特点,考虑实际工程输水过程中水体与槽体间的耦合作用,采用ANSYS软件中融合的流固耦合模块建立了渡槽三维有限元模型,并对3种不同水位工况进行模态计算,得出相应的固有频率和主振型特征,再将正常水位工况下的计算结果与用HHT方法辨识的结果进行对比,误差范围为0.2%~4.4%,能够满足实际工程要求,说明有限元模型的适用性较强,同时对其主振型特征进行分析总结并提出合理的建议,最后利用反应谱理论对渡槽结构进行动力响应计算,得出不同工况下渡槽结构的位移、应力响应最值及变化规律,为渡槽结构的抗震设计、后续研究和该工程的加固改造提供理论依据。

关键词：渡槽流固耦合有限元建模模态参数辨识模态分析响应谱分析

环境不确定性、财务柔性与研发投资——基于中小板上市公司的经验证据

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工业技术经济 2018年第10期37卷 19-25页

作者：陈非韩晓宇华中科技大学经济学院武汉430000

本文以深圳证券交易所2011~2016年中小板上市公司为研究样本,对财务柔性与企业研发投资间的关系进行了理论分析和实证检验,并将环境不确定性作为调节变量纳入该研究框架,考察环境不确定性对财务柔性和研发投资的调节作用。研究结果表明... 详细信息

本文以深圳证券交易所2011~2016年中小板上市公司为研究样本,对财务柔性与企业研发投资间的关系进行了理论分析和实证检验,并将环境不确定性作为调节变量纳入该研究框架,考察环境不确定性对财务柔性和研发投资的调节作用。研究结果表明:财务柔性能促进企业研发投资。进一步地,环境不确定性能加强财务柔性对研发投资的促进作用,环境不确定性程度越高,财务柔性对研发投资的促进作用越大。这一结论对中小企业创新实践具有一定的理论启示。

关键词：环境不确定性财务柔性研发投资回归分析自主创新企业决策

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我国农村代课教师:现实状况及政策建议

教育发展研究 2007年第2B期27卷 35-39页

作者：庞丽娟韩小雨北京师范大学教育学院北京100875

代课教师即没有事业编制的临时教师，是教师队伍中的一个特殊群体，我国绝大多数代课教师集中在贫困、农村地区中小学。农村代课教师的长期、大量存在是我国当前农村师资队伍的客观现状，解决这一问题必须在不影响农村义务教育普及与发... 详细信息

代课教师即没有事业编制的临时教师，是教师队伍中的一个特殊群体，我国绝大多数代课教师集中在贫困、农村地区中小学。农村代课教师的长期、大量存在是我国当前农村师资队伍的客观现状，解决这一问题必须在不影响农村义务教育普及与发展的前提下多方考虑、周密计划、稳定过渡和妥善处理，绝不能一蹴而就。然而，据2006年3月27日教育部新闻发布会称：“2005年我国中小学代课教师约44.8万人，分布在农村公办中小学的约30万人。随着农村义务教育经费保障机制的完善，各地将通过优化教师资源配置，创新农村中小学教师补充机制，加大城镇教师支援农村教育力度和推进中小学布局结构调整等措施，确保农村学校合格教师的需求。

关键词：农村地区代课教师公办中小学教育经费保障机制农村中小学教师政策教师资源配置布局结构调整