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Enhanced Formaldehyde Gas Sensor based on Au-loaded ZnSnO_(3) Microspheres Nanocomposites

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Journal of Wuhan University of Technology(Materials Science) 2022年第6期37卷 1061-1065页

作者： HE Xingxin CHEN Jie ying zhihua ZHENG Xiaolong ZHENG Peng College of Electronics and Information Hangzhou Dianzi UniversityHangzhou 310018China

ZnSnO_(3) microspheres was compounded by hydrothermal method with sodium alginate(SA)as a crystal growth modifier,and the Au nanoparticles were decorated on the surface of ZnSnO_(3) microspheres by simple solution method and heat treatment *** structure and morphology of the prepared samples were characterized by X-ray diffraction(XRD)and scanning electron microscopy(SEM).Under ultraviolet(UV)irradiation,the 0.2wt%Au/ZnSnO_(3)@4g/L SA sensor could detect HCHO and reached a good response of 18.8 at 20 ppm,which was three times higher than the ZnSnO_(3) in the absence of *** sensor also performed an outstanding linearity within 5-20 ppm HCHO and satisfied ***,the possible mechanism of the influence of Au on gas sensitivity is also proposed.

关键词： ZnSnO_(3) Au HCHO gas sensor SA

Effects of impregnation sequence on the NH_(3)-SCR activity and hydrothermal stability of a Ce-Nb/SnO_(2) catalyst

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Journal of Environmental Sciences 2024年第4期138卷 450-457页

作者： ying Zhu Wenpo Shan zhihua Lian Jingjing Liu Yan Zhang Hong He Center for Excellence in Regional Atmospheric Environment and Key Laboratory of Urban Pollutant Conversion Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China Zhejiang Key Laboratory of Urban Environmental Processes and Pollution Control Ningbo Urban Environment Observation and Research StationInstitute of Urban EnvironmentChinese Academy of SciencesNingbo 315800China State Key Joint Laboratory of Environment Simulation and Pollution Control Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of Sciences Beijing 100049China

Hydrothermal stability is crucial for the practical application of deNO_(x)catalyst on diesel vehicles,for the selective catalytic reduction of NO_(x)with NH_(3)(NH_(3)-SCR).SnO_(2)-based materials possess superior hydrothermal stability,which is attractive for the development of NH_(3)-SCR *** this work,a series of Ce-Nb/SnO_(2)catalysts,with Ce and Nb loading on SnO_(2)support,were prepared by impregnation *** was found that,the NH_(3)-SCR activities and hydrothermal stabilities of the Ce-Nb/SnO_(2)catalysts significantly varied with the impregnation sequences,and the Ce-Nb(f)/SnO_(2) catalyst that firstly impregnated Nb and then impregnated Ce exhibited the best *** characterization results revealed that CeNb(f)/SnO_(2)possessed appropriate acidity and redox ***,the strong synergistic effect between Nb and Sn species stabilized the structure and maintained the dispersion of acid *** study may provide a new understanding for the effect of impregnation sequence on activity and hydrothermal stability and a new environmental-friendly NH_(3)-SCR catalyst with potential applications for NO_(x)removal from diesel and hydrogenfueled engines.

关键词： NO_(x)emission control NH_(3)-SCR Hydrothermal stability Ce-Nb/SnO_(2)catalyst Impregnation sequence

Decoupling of Rattling Mode and Superconductivity in Filled-Skutterudite Ba_(x)Ir_(4)Sb_(12)

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Chinese Physics Letters 2024年第7期41卷 132-139页

作者：刘辉于同旭张志华应天平 School of Materials Science and Engineering Dalian Jiaotong UniversityDalian 116028China Institute of Physics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100190China Suzhou Laboratory Suzhou 215123China

The rattling mode,an anharmonic vibrational phonon,is widely recognized as a critical factor in the emergence of superconductivity in caged ***,we present a counterexample in a filled-skutterudite superconductor Ba_(x)Ir_(4)Sb_(12)(x=0.8,0.9,1.0),synthesized via a high-pressure *** measurements down to liquid 3He temperatures reveal a transition temperature(T_(c))of 1.2 K and an upper critical field(H_(c2))of 1.3 *** other superconductors with caged structures,the Ba_(x)Ir_(4)Sb_(12)(X=P,As,Sb)family exhibits a monotonic decreasing T_(c) with the enhancement of the rattling mode,as indicated by fitting the Bloch–Grüneisen *** analysis suggests that electron doping from Ba transforms the direct bandgap IrSb3 into a metal,with the Fermi surface dominated by the hybridization of Ir 5d and Sb 5p *** findings of decoupled rattling modes and superconductivity distinguish the Ba_(x)Ir_(4)Sb_(12) family from other caged superconductors,warranting further exploration into the underlying mechanism.

关键词： mechanism materials superconductivity

Influence of Hydrothermal Dewatering on the Gasification Characteristics of Typical Chinese Lignites

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中国电机工程学报 2013年第32期33卷 I0003-I0003页

作者： GE Lichao ZHANG Yanwei ying Zhi WANG zhihua ZHOU Junhu CEN Kefa Zhejiang University

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消防设备电源监控系统供电电路设计

杭州电子科技大学学报（自然科学版） 2016年第3期36卷 18-22页

作者：葛俊应智花杭州电子科技大学新型电子器件与应用研究所浙江杭州310018

针对目前市场上消防设备电源监控系统供电电路可靠性低的缺点,设计了一种能够持续稳定工作的供电电路,主要包括主备用电源切换、备用电源充电、输出短路保护等电路,以及电磁干扰设计,对重要元件的选型作了详细地说明.实验结果表明,电路... 详细信息

针对目前市场上消防设备电源监控系统供电电路可靠性低的缺点,设计了一种能够持续稳定工作的供电电路,主要包括主备用电源切换、备用电源充电、输出短路保护等电路,以及电磁干扰设计,对重要元件的选型作了详细地说明.实验结果表明,电路实现了对供电线路的有效保护,稳定性较高.

关键词：消防设备电源主备用电源切换短路保护电磁干扰

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微波铁氧体材料及其应用

材料导报 2009年第11期23卷 45-49页

作者：宋开新徐军明郑梁应智花武军秦会斌杭州电子科技大学电子信息学院工业与信息化产业部电子信息材料与器件重点实验室杭州310018

总结和评述了近年来国际国内微波铁氧体材料及其应用研究发展动态。特别是随着材料制备技术与电子通信技术的集成化、高频与宽频化以及MMIC集成电路工艺的快速发展,作为现代通信与军事系统中的关键元器件,新结构体系的微波铁氧体材料在... 详细信息

总结和评述了近年来国际国内微波铁氧体材料及其应用研究发展动态。特别是随着材料制备技术与电子通信技术的集成化、高频与宽频化以及MMIC集成电路工艺的快速发展,作为现代通信与军事系统中的关键元器件,新结构体系的微波铁氧体材料在米波-毫米波段领域的应用也得到不断的更新。设计与制备出可用于各频带的超小型化、高性能和超宽带高性能器件的新结构新体系铁氧体材料是微波铁氧体材料的开发研究方向。

关键词：微波铁氧体应用

Injectable thermosensitive microsphere-hydrogel composite system:combined therapy of hepatocellular carcinoma by remodeling tumor immune microenvironment

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Science China Materials 2024年第10期67卷 3379-3391页

作者： Jinghan Liao zhihua Wu Yijie Qiu Fangqin Xue Ke Gong Yi Duan Chao Xu Bin Liu Jiangtao Lin Yi Dong ying Sun Yourong Duan State Key Laboratory of Systems Medicine for Cancer Shanghai Cancer InstituteRenji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200032China Department of Ultrasound Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Gastrointestinal Surgery Shengli Clinical Medical College of Fujian Medical UniversityFujian Provincial HospitalFuzhou 350001China

Advanced hepatocellular carcinoma(HCC)is one of the most prevalent malignancies,and the clinical treatment outcomes are not *** to the complexity,heterogeneity,and immunosuppressive microenvironment of HCC,monotherapies have limited ***,combined therapy may effectively enhance antitumor treatment by remodeling the tumor immune *** study reports an injectable thermosensitive microsphere-hydrogel composite system for local co-delivery of the targeted drug sorafenib(SOR)and immunomodulatory cytokines for the combined therapy of *** delivery system exhibited superior properties such as dual-drug delivery,sustained and slow release,local injectability,thermosensitivity,and low side ***,it successfully remodeled the immune microenvironment of HCC by increasing the infiltration of CD8^(+)T cells and natural killer cells while decreasing the infiltration of immunosuppressive Treg cells,thereby achieving a potent synergistic effect with *** safe composite delivery system can remodel the tumor microenvironment and enhance anti-tumor treatment,providing a valuable option for the treatment of HCC.

关键词： microspheres thermosensitive hydrogel combined therapy immunomodulation hepatocellular carcinoma

职业院校“岗课赛证”综合育人改革研究——以酒店管理与数字化运营专业为例

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安徽冶金科技职业学院学报 2024年第2期34卷 30-31,36页

作者：徐颖甘志华马鞍山师范高等专科学校安徽马鞍山243000

主要对职业院校“岗课赛证”综合育人改革路径进行研究。通过文献研究、个案研究,结合专业发展实践,界定核心概念,分析“岗课赛证”综合育人的重要意义。以酒店管理与数字化运营专业为例,探索岗课赛证综合育人的有效路径。

关键词： “岗课赛证”综合育人改革路径职业院校酒店管理与数字化运营专业

“工作式顶岗”实习新模式的研究与实践——以浙江建设职业技术学院为例

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科教文汇 2018年第17期 89-90页

作者：应佐萍吴志华浙江建设职业技术学院浙江杭州311231 绿城物业服务集团有限公司浙江杭州310012

顶岗实习是高职人才培养的重要环节,是实施"校企合作工学结合"培养方式的载体,但由于学校和企业不同的运行机制,导致出现不理想的结果。文章剖析现阶段高职顶岗实习教学中存在的问题,在此基础上,利用校企合作平台,建立顶岗实习新模式,即... 详细信息

顶岗实习是高职人才培养的重要环节,是实施"校企合作工学结合"培养方式的载体,但由于学校和企业不同的运行机制,导致出现不理想的结果。文章剖析现阶段高职顶岗实习教学中存在的问题,在此基础上,利用校企合作平台,建立顶岗实习新模式,即"工作式"顶岗,研究并实践了破解顶岗实习难题的有效路径,达到了校企生共赢。

关键词：工作式顶岗校企合作实施路径成效