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Restructuring of 4H Phase Au Nanowires and its Catalytic Behavior toward CO Electro-oxidation

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化学物理学报(英文) 2023年第5期36卷 533-544,I0001页

作者： Xuxu Ye bingyu liu Da Zhou Yan Xia Chen Department of Chemical Physics and Hefei National Research Center for Physical Science at the Microscale University of Science and Technology of ChinaHefei 230026China

Au nanowires in 4H crystalline phase(4H Au NWs)are synthesized by colloid solution *** crys-talline phase and surface structure as well as its performance toward electrochemical oxidation of CO be-fore and after removing adsorbed oleylamine molecules(OAs)intro-duced from its synthesis are evaluat-ed by high-resolution transmission electron microscopy(HR-TEM),X-ray diffraction(XRD),underpoten-tial deposition of Pb(Pb-upd)and cyclic *** methods,*** acid cleaning,electrochemical oxidation cleaning,and diethylamine replacement,have been tried to remove the adsorbed *** all methods,upon the removal of the adsorbed OAs,the morphology of 4H gold nanoparticles is found to gradually change from nanowires to large dumbbell-shaped nanoparticles,accompanying with a transition from the 4H phase to the face-centered cubic *** the other hand,the Pb-upd results show that the sample sur-faces have almost the same facet composition before and after removal of the adsorbed *** electrochemical cleaning with continuous potential scans up to 1.3 V,CO electro-oxida-tion activity of the 4H Au sample is significantly *** CO electro-oxidation activi-ty is compared with results on the three basel Au single crystalline surfaces reported in the lit-erature,possible origins for its enhancement are discussed.

关键词： Phase engineering Crystalline phase transition 4H phase Au nanowires Pb un-der potential deposition CO electro-oxidation

Contact Electrification Spectrum for Performance Enhancement Mechanism Investigation of Triboelectric Nanogenerators based on Silicone Elastomers with Different Surface Microstructures

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高分子科学:英文版 2023年第10期41卷 1591-1598页

作者： Jianliang Gong Shenyang Ye Yan Luo Liqiong Xia bingyu liu Yiwang Chen National Engineering Research Center for Carbohydrate Synthesis/Key Laboratory of Fluorine and Silicon for Energy Materials and Chemistry of Ministry of Education College of Chemistry and Chemical EngineeringJiangxi Normal UniversityNanchang330022China Institute of Polymers and Energy Chemistry(IPEC)/Jiangxi Provincial Key Laboratory of New Energy Chemistry Nanchang UniversityNanchang330031China

Triboelectric nanogenerators(TENGs)based on conjunctive effects of contact electrification(CE)and electrostatic induction are emerging as a new mechanical energy harvesting and sensing technique for promising applications in smart wearables,Internet of Things(IoTs),*** surface microstructure of a flexible triboelectric material for the increase of surface area is a common strategy for performance enhancement of TENGs,but the real roles of surface microstructures on their output performance are still not explicit due to the lack of suitable analysis tool and rational experimental *** advantages of the surface-sensitive characteristic of CE effect,this work exploited and developed the electric signal patterns generated by single impact of TENGs as a kind of CE spectrum to analyze and speculate the real roles of surface microstructures of flexible triboelectric materials on the output performance of ***,four different kinds of surface microstructures,namely planar surface(PS)and three combinations of two basic surface microstructures,i.e.,micro lens arrays(MLAs),fabric textures(FTs),and hierarchical structures of MLAs on FTs(MLA/FTs),were elaborately designed and introduced for an identical triboelectric material(i.e.,silicone elastomer)by a(micro)molding synthesis *** they were used for assembly of TENGs based on vertical contact mode to conduct performance evaluation under the same triggering *** systematic analysis and comparison of their highly repeatable CE spectra by programmed machine,it was found that the surface microstructure for a flexible triboelectric material to maximally enhance the output performance of a TENG shall achieve a positive synergistic effect of increasing triboelectric charge density,effective contact area and contacting/separating velocity,rather than simple increase of its surface area.

关键词： Contact electrification spectrum Silicone elastomer Surface microstructures Triboelectric nanogenerators Enhancement mechanism

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重症信息化发展建设研究

中国数字医学 2024年第3期19卷 1-6页

作者：费科锋潘贤刘秉宇杨之勇浙江医院信息中心杭州310013 浙江医院重症医学中心杭州310013 杭州脉兴医疗科技有限公司

探讨重症医学信息化建设的发展现状与建设方案。分析了目前重症医学信息化的国内外发展现状,指出当前重症信息化的发展需求痛点。基于物联网数据平台的建设提出解决方案,展望了重症医学信息化建设的未来发展方向,借助物联网,实现医疗数... 详细信息

探讨重症医学信息化建设的发展现状与建设方案。分析了目前重症医学信息化的国内外发展现状,指出当前重症信息化的发展需求痛点。基于物联网数据平台的建设提出解决方案,展望了重症医学信息化建设的未来发展方向,借助物联网,实现医疗数据的全面整合。通过信息化建设,重症医学将迎来更加高效、精准的医疗服务,为患者的生命安全和健康保驾护航。

关键词：重症医学信息化建设物联网

USP3 deubiquitinates and stabilizes the adapter protein ASC to regulate inflammasome activation

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Cellular & Molecular Immunology 2022年第10期19卷 1141-1152页

作者： Wanxin Zhuang Lei Zhang Yi Zheng bingyu liu Chunhong Ma Wei Zhao Suxia liu Feng liu Chengjiang Gao Key Laboratory of Infection and Immunity of Shandong Province&Key Laboratory for Experimental Teratology of Ministry of Education Shandong UniversityJinanShandong250012PR China Department of Immunology School of Biomedical SciencesShandong UniversityJinanShandong250012PR China

Inflammasomes are essential components of the innate immune system and its defense against infections,whereas the dysregulation of inflammasome activation has a detrimental effect on human *** activation of inflammasomes is subjected to tight regulation to maintain immune homeostasis,yet the underlying mechanism remains ***,we identify USP3 as a direct deubiquitinating enzyme(DUB)for ASC,the central adapter mediating the assembly and activation of most ***3 removes the K48-linked ubiquitination on ASC and strengthens its stability by blocking proteasomal ***,USP3 promotes inflammasome activation,and this function was confirmed in mouse models of aluminum(Alum)-induced peritonitis,*** infection and flagellin-induced pneumonia in *** work unveils that USP3 functions as a key regulator of ASC ubiquitination and maintains the physiological role of ASC in mediating inflammasome activation,and we propose a new mechanism by which the ubiquitination of ASC regulates inflammasome activation.

关键词： ASC inflammasome K48-linked ubiquitination proteasomal degradation USP3

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城市曲线钢-混凝土组合梁智能建造的探索

建设科技 2024年第13期 57-60页

作者：刘美霞李佩刘伟田连民刘鑫刘丙宇刘洪娥住房和城乡建设部科技与产业化发展中心北京100835 北京市市政工程研究院北京100037 北京交通大学北京100091 中交路桥建设有限公司北京101100 北京城建远东建设投资集团有限公司北京102200 北京建工路桥集团有限公司北京101300

城市曲线钢-混凝土组合梁的智能建造,是将智能技术与桥梁工程建设技术相结合,实现建造技术的数字化赋能。为落实碳达峰碳中和目标任务,推动城乡建设绿色发展,加大智能建造在工程建设各环节应用。本文立足于探索分析城市曲线钢-混凝土组... 详细信息

城市曲线钢-混凝土组合梁的智能建造,是将智能技术与桥梁工程建设技术相结合,实现建造技术的数字化赋能。为落实碳达峰碳中和目标任务,推动城乡建设绿色发展,加大智能建造在工程建设各环节应用。本文立足于探索分析城市曲线钢-混凝土组合匝道桥和立交桥的数字设计、智能生产、智能施工,智能检测及运维现状,为曲线钢-混凝土组合梁全链条智能建造与运维的发展提供技术与理论参考。

关键词：曲线立交桥数字设计智能建造

MAVS-loaded unanchored Lys63-linked polyubiquitin chains activate the RIG-I-MAVS signaling cascade

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Cellular & Molecular Immunology 2023年第10期20卷 1186-1202页

作者： Feng liu Wanxin Zhuang Bin Song Yuan Yang Junqi liu Yi Zheng bingyu liu Jie Zheng Wei Zhao Chengjiang Gao Key Laboratory of Infection and Immunity of Shandong Province&Key Laboratory for Experimental Teratology of Ministry of Education Shandong UniversityJinan250012ShandongP.R.China Department of Immunology School of Biomedical SciencesShandong UniversityJinan250012ShandongP.R.China Shanghai Institute of Materia Medica Chinese Academy of Sciences201203ShanghaiP.R.China Department of Pathogenic Biology School of Biomedical SciencesShandong UniversityJinan250012ShandongP.R.China

The adaptor molecule MAVS forms prion-like aggregates to govern the RIG-I-like receptor(RLR)signaling ***63(K63)-linked polyubiquitination is critical for MAVS aggregation,yet the underlying mechanism and the corresponding E3 ligases and deubiquitinating enzymes(DUBs)remain ***,we found that the K63-linked polyubiquitin chains loaded on MAVS can be directly recognized by RIG-I to initiate RIG-I-mediated MAVS aggregation with the prerequisite of the CARDRIG-I-CARDMAVS ***,many K63-linked polyubiquitin chains attach to MAVS via an unanchored *** identified Ube2N as a major ubiquitin-conjugating enzyme for MAVS and revealed that Ube2N cooperates with the E3 ligase Riplet and TRIM31 to promote the unanchored K63-linked polyubiquitination of *** addition,we identified USP10 as a direct DUB that removes unanchored K63-linked polyubiquitin chains from ***,USP10 attenuates RIG-I-mediated MAVS aggregation and the production of type I *** with a deficiency in USP10 show more potent resistance to RNA virus *** work proposes a previously unknown mechanism for the activation of the RLR signaling cascade triggered by MAVS-attached unanchored K63-linked polyubiquitin chains and establishes the DUB USP10 and the E2:E3 pair Ube2N-Riplet/TRIM31 as a specific regulatory system for the unanchored K63-linked ubiquitination and aggregation of MAVS upon viral infection.

关键词： MAVS Aggregation Unanchored K63-linked polyubiquitin chains RIG-l USP10

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药用植物三叶青培育技术研究进展

江西科学 2024年第3期42卷 505-510页

作者：曾德财杨志军刘冰钰刘远杰吴照祥熊炀赣南树木园江西赣州341212 江西省科学院生物资源研究所南昌330096

三叶青是中国特有珍稀药用植物,以块根或全草入药,有抗炎、抗肿瘤及保肝等重要药理作用,具有广阔的药用价值和经济价值。然而其野生资源日渐减少,并不能满足市场需求。在此背景下,国内外开始对三叶青培育技术进行了大量研究,并取得了一... 详细信息

三叶青是中国特有珍稀药用植物,以块根或全草入药,有抗炎、抗肿瘤及保肝等重要药理作用,具有广阔的药用价值和经济价值。然而其野生资源日渐减少,并不能满足市场需求。在此背景下,国内外开始对三叶青培育技术进行了大量研究,并取得了一定的成果。结合以往相关文献,从三叶青的种源选择、基地选址、育苗繁殖、栽植模式、管理5个方面对三叶青生长发育影响进行了系统的阐述与总结,以期为三叶青的培育提供技术参考和借鉴。

关键词：药用植物三叶青培育技术生长发育次生代谢

《女科百问》治疗产后病用药规律数据挖掘研究

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陕西中医药大学学报 2024年第3期47卷 94-98页

作者：刘冰玉武权生黄灿灿吕银鑫曾燕张扬甘肃中医药大学甘肃兰州730030 敦煌医学与转化教育部重点实验室甘肃兰州730030

目的基于数据挖掘探讨《女科百问》治疗产后病的用药规律,总结齐仲甫产后病的学术思想。方法整理齐仲甫《女科百问》产后病的内服方剂,建立标准数据库,对产后药物进行频数统计、聚类分析及关联规则探索。结果《女科百问》中产后内服方剂... 详细信息

目的基于数据挖掘探讨《女科百问》治疗产后病的用药规律,总结齐仲甫产后病的学术思想。方法整理齐仲甫《女科百问》产后病的内服方剂,建立标准数据库,对产后药物进行频数统计、聚类分析及关联规则探索。结果《女科百问》中产后内服方剂共40首,涉及中药112味,总频次计340次。用药以甘草、人参、肉桂为主;性味多以辛、甘、温并用;归经以脾经为最,心、肺经次之。关联规则探索得到药物组合17对,其中以“甘草-芍药”“甘草-肉桂”“当归-肉桂”支持度最高。结论齐仲甫认为产后病的发生与脾胃密切相关,治疗核心思想是“壮后天以愈虚损,行气血以化瘀滞,调营卫以合阴阳”,并根据病情灵活用药,不拘泥于一方一法。

关键词：齐仲甫女科百问产后病数据挖掘用药规律

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猪场沼液还田对土壤和植物重金属含量的影响

热带农业科学 2024年第2期44卷 64-72页

作者：徐晓楠王一佩杨钙仁刘炳妤邓羽松黄钰涵广西大学林学院广西南宁530004 中国科学院科技创新发展中心北京100190 广西森林生态与保育重点实验室广西南宁530004

还田消纳是猪场沼液资源化利用的主要方式。由于沼液中含有多种金属元素,过量浇灌会引发土壤重金属污染。目前,关于猪场沼液对耕地土壤和植物重金属污染特征的影响及其影响因子的研究还不够深入。在广西生猪养殖区,选取了4种不同耕地利... 详细信息

还田消纳是猪场沼液资源化利用的主要方式。由于沼液中含有多种金属元素,过量浇灌会引发土壤重金属污染。目前,关于猪场沼液对耕地土壤和植物重金属污染特征的影响及其影响因子的研究还不够深入。在广西生猪养殖区,选取了4种不同耕地利用类型(叶菜类、果树类、饲草类、药草类)和14个样地,就不同沼液浇灌强度对土壤与植物重金属的影响规律及其影响因子进行研究。结果表明:在14个样地0~40 cm表层土壤中,重金属Cu、Zn、Cd的输入强度最大,且其含量和土壤pH变化和与沼液浇灌总量呈显著(p<0.05)正相关;在4种耕地类型中,杂交象草和空心菜的可食用部分Cu、Zn、Cd、Pb、Cr含量与沼液浇灌总量呈显著正相关;在沼液还田中,由于Cu、Zn的输入强度大,而植物对其的富集系数又较低,因此土壤中Cu、Zn积累较快;浇灌沼液对叶菜类和果树类的主要污染风险是Pb和Cd,而对杂交象草的污染风险较小。

关键词：猪场沼液还田土壤植物重金属含量

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