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Green Energy & Environment 2019年第3期4卷 245-253页

作者： Huaifang Zhang Jubing Zhang Kunhao Liu Yunqi Zhu xiaoyu qiu Dongmei Sun Yawen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University

The construction and surface modification of three-dimensional(3D) graphene structures have been recognized as effective ways to prepare high-performance graphene-based composites in energy-related applications. Herein, on the basis of well-defined morphology and efficient electron conduction, the 3D highly-stable graphene hollow nanospheres have been synthesized by using sacrificial template method. The asprepared 3D graphene nanospheres exhibit superior mechanical stability, electrochemical stability, and strong hydrophobicity, which may accelerate the emission of H2O in acidic medium-based ORR. Accordingly, the 3D highly-stable graphene nanospheres are used to confine tiny Pt nanoparticles(3Dr-GO@Pt HNSs) for ORR in acidic medium, exhibiting superior activity with 4-electron-transfered pathway. Meanwhile,dramatically improved durability are achieved in terms of both ORR mass activity and electrochemically surface area compared to those of commercial Pt/C.

关键词： Sacrificial template method 3D r-GO nanospheres Highly-stable Hollow structure Oxygen reduction reaction

One-pot synthesis of Ag-rich AgPd alloy nanoactiniae and their enhanced electrocatalytic activity toward oxygen reduction

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Journal of Energy Chemistry 2019年第1期28卷 111-117页

作者： xiaoyu qiu Xiaohong Yan Ke Cen Huaifang Zhang Geng Gao Liangjun Wu Dongmei Sun Yawen Tang Jiangsu Key Laboratory of New Power Batteries Jiangsu Collaborative Innovation Center of Biomedical Functional Materials School of Chemistry and Materials Science Nanjing Normal University Nanjing No.1 Middle School Liyang Middle School of Jiangsu Province

The electro-catalytic properties can be effectively optimized by designing bimetallic alloy nanoparticles with high-content less-active metal to enhance the competence of more-active noble metal. Herein, a one-pot hydrothermal approach is demonstrated for the controllable synthesis of Ag-rich Ag_9Pd_1 alloy nanoactiniae with obviously enhanced electro-catalytic activity(2.23 mA cm^(-2) at 0.85 V) and stability for oxygen reduction reaction. In alkaline solution, the ORR onset potential and half-wave potential of the Ag_9Pd_1 alloy nanoactiniae can reach a value of 1.02 V and 0.89 V, respectively, which origin from strong ligand and ensemble effects between Pd element and Ag element. The nanocrystals are uniformly alloyed, displaying a Ag_9Pd_1 combination, as displayed by an assembly of X-ray diffraction(XRD) spectrum,energy dispersive X-ray(EDX) analysis, and cyclic voltammetry(CV). This concept of tuning bimetallic alloy nanocrystals with low concentrations of more precious metal may be a promising approach to be applicable to a wide range of alloy nanocrystals.

关键词： Ag-rich alloy Ag9Pd1 Hydrothermal synthesis Ligand and ensemble effects Oxygen reduction reaction

Optimization and Effects of Catalytic Ozonation of Actual Phenolic Wastewater by CuO/Al2O3

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China Petroleum Processing & Petrochemical Technology 2019年第3期21卷 74-80页

作者： Ma Rui Liu Guangmin Feng Sihui qiu xiaoyu Zhang Yanqing Xia Shumei Xue Jianliang College of Materials Science and Chemical Engineering Harbin Engineering UniversityHarbin 150001 College of Chemical and Environmental Engineering Shandong University of Science and TechnologyQingdao 266590

In order to improve the ability of ozone to catalyze the degradation of phenolic pollutants in wastewater,the CuO/Al2O3 catalysts was prepared by the impregnation precipitation method and an ozone catalytic oxidation system was *** actual phenolic sewage was used as the treatment *** the reaction conditions of the system were optimized,and the treatment effect was determined,while the non-catalytic system was used as a control *** the same time,the influence of salt and ammonia nitrogen related water quality on the system was *** optimal reaction conditions for the treatment of phenolic wastewater covered:a catalyst dosage of 30 g/L,an ozone flow rate of 0.3 m3/h,a pH value of 8.80,and a reaction time of 15 *** these conditions,the phenol and COD removal rates of the system reached 98.7%and 49.4%,respectively,which were by 31.3 percentage points and 16.2 percentage points higher than that of the ozonation system *** salt and ammonia nitrogen in the sewage can reduce the oxidation effect of the *** the salinity reached 10%and the ammonia nitrogen content reached 13 000 mg/L,the removal rate of phenol could be reduced by about 20%.The results of this paper have a reference value for phenol wastewater treatment engineering.

关键词： CuO/Al2O3 catalyst catalytic ozonation phenolic wastewater reaction conditions water quality factor

High-Density Growth of Ultrafine PdIr Nanowires on Graphene: Achieving the Wrinkle-free Property and Serving as Efficient Bifunctional Electrocatalysts for Water Splitting

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High-Density Growth of Ultrafine PdIr Nanowires on Graphene:...

中国化学会第二十次全国电化学大会

作者： xiaoyu qiu Yawen Tang Nanjing Normal University

Manipulating the distribution states, exposed surfaces, and interfacial interactions of graphene-based nanomaterials is a key issue for taking full advantages of graphene characteristics. Herein we report the in-suit plantation of numerous ultrafine PdIr alloy nanowires（diameter of 1.8 nm） to predominately cover the whole surface of graphene（PdIr UNWs/WFG）.

关键词：

来源： cnki会议评论

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网络安全问题及处理方法

铁道通信信号 2003年第10期39卷 36-38页

作者：仇晓钰铁通上海分公司

介绍了包括垃圾邮件和邮件炸弹、恶意扫描、入侵、DoS攻击等常见的网络安全问题和一些处理方法 ,并提供一些处理安全问题的软件。

关键词：网络安全处理方法垃圾邮件邮件炸弹软件恶意扫描拒绝服务攻击

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西藏兰科植物新记录

浙江大学学报（理学版） 2018年第5期45卷 647-650页

作者：张丽仇晓玉罗建西藏农牧学院西藏农牧特色资源研发协同创新中心西藏林芝860000

报道了西藏兰科植物5种新记录,分别为虾脊兰属(Calanthe ***)的弧距虾脊兰(Calanthe arcuata Rolfe)和反瓣虾脊兰(Calanthe reflexa Maximowicz)、石斛属(Dendrobium Swartz)的大苞鞘石斛(Dendrobium wardianum Warner)、山兰属(Oreorchis Lindley)的山兰(Oreorchis patens(Lindley)Lindley)和软叶兰属(Crepidium Blume)的细茎沼兰(Crepidium khasianum(***)Szlachetko),并附有新记录种的特征照片.凭证标本保存于西藏高原生态研究所标本室(XZE).

关键词：兰科植物新记录西藏

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美国老年医保按病种付费支付标准借鉴与启示

中华医院管理杂志 2018年第7期34卷 612-614页

作者：邱晓禹朱玄吴晶天津大学管理与经济学部 300072 天津大学药物科学与技术学院

从正常病例和异常病例的界定开始，系统分析了美国老年医保按病种付费对于正常病例和异常病例基础支付标准和附加支付标准的制定方法，认为我国应当注重提高付费方式转换的平稳性，调动医疗机构的积极性；要重视医疗机构之问的差异性，... 详细信息

从正常病例和异常病例的界定开始，系统分析了美国老年医保按病种付费对于正常病例和异常病例基础支付标准和附加支付标准的制定方法，认为我国应当注重提高付费方式转换的平稳性，调动医疗机构的积极性；要重视医疗机构之问的差异性，实现医保的精细化管理。

关键词：支付标准制定和审核病例管理按病种付费美国老年医保计划启示

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一种快速的大型二维有源相控阵失效校准方法

电子信息对抗技术 2022年第1期37卷 97-101,105页

作者：石力姚明明邱小于电子信息控制重点实验室成都610036

针对二维有源相控阵,提出一种快速的阵列失效校准方法。该方法分别应用IFFT和FFT正算方向图和反算新的阵列单元激励,反复迭代,可大大优化方向图,并抑制天线方向图的恶化。和文献中的方法相比,该方法可提高计算速度,节省优化时间。以一个... 详细信息

针对二维有源相控阵,提出一种快速的阵列失效校准方法。该方法分别应用IFFT和FFT正算方向图和反算新的阵列单元激励,反复迭代,可大大优化方向图,并抑制天线方向图的恶化。和文献中的方法相比,该方法可提高计算速度,节省优化时间。以一个-40 dB副瓣电平的6400(80×80)单元阵列为例,其中15%的随机单元失效,校正结果表明该方法实用、高效。

关键词： FFT 有源相控阵阵列失效校准二维方向图

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音乐教学中融入传统音乐文化探微

成才之路 2022年第16期 98-100页

作者：仇笑雨江苏省苏州高新区狮山实验小学校江苏苏州215000

传统音乐文化作为传统文化的重要组成部分,是千百年来人民积累的艺术智慧。优美的音符记录了各个地区、各个民族的思想和情感,汇集成千姿百态的音乐形式,在传统文化土壤中延续和发展。教师在音乐教学中融入传统音乐文化,既有助于弘扬我... 详细信息

传统音乐文化作为传统文化的重要组成部分,是千百年来人民积累的艺术智慧。优美的音符记录了各个地区、各个民族的思想和情感,汇集成千姿百态的音乐形式,在传统文化土壤中延续和发展。教师在音乐教学中融入传统音乐文化,既有助于弘扬我国民族音乐,又有助于塑造学生良好品格。文章从音乐课堂融入传统音乐文化的意义入手,分析传统音乐文化在音乐课堂融入过程中存在的问题,对音乐课堂融入传统音乐文化的策略进行探究。

关键词：小学音乐民族音乐传统音乐文化审美素养

同方期刊数据库博看期刊评论

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排汽装置的结构优化

化工设备与管道 2019年第3期56卷 35-37页

作者：裘小裕杭州中能汽轮动力有限公司

排汽装置属于外压工况,为了防止屈曲变形,需在内部设置支撑结构。另外,为保证进汽与疏水顺畅,筒体上具有开孔等结构不连续。此类结构会在设备上产生局部应力集中,尤其在需要进行疲劳分析的场合,该类区域都会成为疲劳失效的危险区域。分... 详细信息

排汽装置属于外压工况,为了防止屈曲变形,需在内部设置支撑结构。另外,为保证进汽与疏水顺畅,筒体上具有开孔等结构不连续。此类结构会在设备上产生局部应力集中,尤其在需要进行疲劳分析的场合,该类区域都会成为疲劳失效的危险区域。分析结果表明,考虑疲劳工况的排汽装置不宜设置支撑结构,筒体开孔的无支撑距离不宜过长,且应采用圆滑过渡,避免90°的外形突变。

关键词：凝汽器外压结构不连续应力集中