检索结果-南通市图书馆

Synergistic Ru/RuO_(2)heterojunctions stabilized by carbon coating as efficient and stable bifunctional electrocatalysts for acidic overall water splitting

引用

Nano Research 2024年第8期17卷 6931-6939页

作者： Man wu Yuying Fan Yang Huang Dongxu Wang Ying Xie aiping wu Chungui Tian Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080China

The development of highly active and stable acidic water oxidation electrocatalysts is of great significant for promoting the industrial application of proton exchange membrane ***-based catalysts have broad application prospects in acidic water oxidation,but their limitations in stability and activity hinder their further ***,a nitrogen-doped carbon(NC)coated porous Ru/RuO_(2)heterojunctional hollow sphere(Ru/RuO_(2)/NC)is designed as high-active and stable bifunctional electrocatalyst for acidic oxygen evolution reaction(OER)and hydrogen evolution reaction(HER).In synthesis,the key is to use mesoporous polydopamine spheres as a template for forming hollow spheres,a source of NC coating and a reducing agent for forming Ru/RuO_(2)*** Ru/RuO_(2)heterojunction adjusts the electronic structure of Ru active sites,optimizing the adsorption of intermediate ***,the NC coating and the interaction between NC and Ru/RuO_(2)effectively prevent Ru from over-oxidation and *** porous hollow structure provides more exposed active sites and promotes mass ***,Ru/RuO_(2)/NC exhibits outstanding OER and HER performance with low overpotentials of 211 and 32 mV at 10 mA·cm^(−2),respectively,and shows excellent *** acid water splitting electrolyzer,based on the bifunctional Ru/RuO_(2)/NC,requires low cell voltages of 1.46 and 1.76 V at 10 and 100 mA·cm^(−2),respectively,with good stability for over 100 h operation,surpassing Pt/C||RuO_(2)and most of the reported catalysts.

关键词： hollow heterojunction bifunctional electrocatalysts oxygen evolution hydrogen evolution acidic water splitting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Recent research progress in the mechanism and suppression of fusion welding-induced liquation cracking of nickel based superalloys

引用

International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 1072-1088页

作者： Zongli Yi Jiguo Shan Yue Zhao Zhenlin Zhang aiping wu Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China College of Engineering China Agricultural UniversityBeijing 100091China State Key Laboratory of Clean and Efficient Turbomachinery Power Equipment Department of Mechanical EngineeringTsinghua UniversityBeijing 100084China Key Laboratory for Advanced Materials Processing Technology Ministry of EducationBeijing 100084China School of Material Science and Engineering Southwest Jiaotong UniversityChengdu 610031China

Nickel-based superalloys are extensively used in the crucial hot-section components of industrial gas turbines,aeronautics,and astronautics because of their excellent mechanical properties and corrosion resistance at high *** welding serves as an effective means for joining and repairing these alloys;however,fusion welding-induced liquation cracking has been a challenging *** paper comprehensively reviewed recent liquation cracking,discussing the formation mechanisms,cracking criteria,and *** recent investigations,regulating material composition,changing the preweld heat treatment of the base metal,optimizing the welding process parameters,and applying auxiliary control methods are effective strategies for mitigating *** promote the application of nickel-based superalloys,further research on the combination impact of multiple elements on cracking prevention and specific quantitative criteria for liquation cracking is necessary.

关键词： nickel-based superalloy fusion welding liquation cracking cracking mechanism cracking suppression

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Porous S-doped carbon nitride foam with accelerated charge dynamics for synchronous photocatalytic hydrogen production and highly selective oxidation of amines

引用

Nano Research 2024年第8期17卷 6860-6869页

作者： Yu He aiping wu Nan Wang Ying Xie Chungui Tian Honggang Fu Key Laboratory of Functional Inorganic Material Chemistry(Ministry of Education of the People’s Republic of China) Heilongjiang UniversityHarbin 150080China

Photocatalytic hydrogen evolution coupled with organic oxidation holds great promise for converting solar energy into high-valueadded chemicals,but it is hampered by sluggish charge dynamics and limited redox ***,a porous S-doped carbon nitride(S-C_(3)N_(4−y))foam assembled from ultrathin nanosheets with rich nitrogen vacancies was synthesized using a molecular selfassembly *** S dopants and N vacancies synergistically adjusted the band structure,facilitating light absorption and enhancing the oxidation ***,the ultrathin nanosheets and porous structure provided more exposed active sites and facilitated mass and charge ***,S-C_(3)N_(4−y) foam exhibited enhanced photocatalytic activities for synchronous hydrogen evolution(4960μmol/(h·g))and benzylamine oxidation to N-benzylidenebenzylamine(4885μmol/(h·g))with high selectivity of>99%,which were approximately 17.6 and 72.9 times higher than those of bulk CN,*** photocatalytic coupling pairing reaction promotes the water splitting by consuming H2O2,thereby improving the hydrogen evolution efficiency and achieving the production of high value-added *** study provides an effective route for regulating the morphology and band structure of carbon nitride for synthesizing highly valuable chemicals.

关键词： photocatalysis S-doped carbon nitride band structure regulation hydrogen evolution coupled with benzylamine oxidation reaction mechanism

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hollow Ni Mo-based nitride heterojunction with super-hydrophilic/aerophobic surface for efficient urea-assisted hydrogen production

引用

Journal of Energy Chemistry 2024年第8期95卷 428-439,I0009页

作者： Yuying Fan Ying Gu Dongxu Wang Yanqing Jiao aiping wu Chungui Tian Key Laboratory of Functional Inorganic Material Chemistry Ministry of Education of the People’s Republic of ChinaHeilongjiang UniversityHarbin 150080HeilongjiangChina College of Chemistry Chemical Engineering and Resource UtilizationNortheast Forestry UniversityHarbin 150040HeilongjiangChina

Hydrogen evolution reaction(HER)and urea oxidation reaction(UOR)are key reactions of the watercycling associated catalytic process/*** design of catalysts with a super-hydrophilic/aerophobic structure and optimized electron distribution holds great ***,we have designed a threedimensional(3D)hollow Ni/NiMoN hierarchical structure with arrayed-sheet surface based on a onepot hydrothermal route for efficient urea-assisted HER based on a simple hydrothermal *** Ni/NiMoN catalyst exhibits super-hydrophilic/aerophobic properties with a small droplet contact angle of 6.07°and an underwater bubble contact angle of 155.7°,thus facilitating an escape of bubbles from the *** functional theory calculations and X-ray photoelectron spectroscopy results indicate the optimized electronic structure at the interface of Ni and NiMoN,which can promote the adsorption/desorption of reactants and *** virtues combining with a large specific surface area endow Ni/NiMoN with efficient catalytic activity of low potentials of 25 mV for HER and 1.33 V for UOR at10 mA cm^(-2).The coupled HER and UOR system demonstrates a low cell voltage of 1.42 V at 10 mA cm^(-2),which is approximately 209 mV lower than water electrolysis.

关键词： Hydrogen evolution Transition metal nitrides Hollow heterojunctions Urea electrooxidation Super hydrophilic/aerophobic

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

EVEscape: Revealing potential escape sites based on the viral variation landscape

引用

Biophysics Reports 2024年第2期10卷 133-134页

作者： Yaling Li aiping wu Hang-Yu Zhou Zhejiang Lab State Key Laboratory of Common Mechanism Research for Major Diseases Suzhou Institute of Systems MedicineChinese Academy of Medical Sciences & Peking Union Medical College

The continuous mutation and evolution of viruses to evade the host immune response present a formidable challenge to combating infectious diseases. Accurate prediction of viral immune escape sites is crucial for disease diagnosis, therapy development, vaccine design, and other strategies aimed at combating emerging infectious diseases. During the COVID-19 pandemic,

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Analysis of the Effect and Influencing Factors of Rural Domestic Sewage Treatment Based on A^(2)O-MBBR Integrated Process

引用

Agricultural Biotechnology 2024年第2期13卷 27-32页

作者： Wangang wu aiping wu Guixiang YUAN Yuyuan ZHOU Junwei LU Oriental Science and Technology College Hunan Agricultural UniversityChangsha 410128China College of Environment and Ecology Hunan Agricultural UniversityChangsha 410128China

[Objectives] This study was conducted to solve the prominent problems in the treatment of domestic sewage in southern rural areas of China. [Methods] An integrated process treatment mode of anaerobic/anoxic/aerobic moving bed biofilm reactor (A 2O-MBBR) was proposed to analyze and study its operating effect and influencing factors. [Results] The A^(2)O-MBBR mode had good COD removal efficiency and nitrogen and phosphorus removal performance, and the water quality index of the effluent met the Class A standard of GB181918-2002. This mode is suitable for treating rural domestic sewage, and has high treatment effects in different operating periods. In spring, the average removal rates of COD, NH_(4)^(+)-N, TN, TP and SS reached (83.53 ± 2.15)%, (89.44 ± 4.97)%, (67.36±18.53)%, (88.22±11.21)% and (91.73±2.25)%, respectively;In the autumn period, the average removal rates of COD, NH_(4)^(+)-N, TN, TP and SS were (83.49±2.64)%, (89.26±9.19)%, (66.05±17.00)%, (87.48±9.68)%, and (91.13±2.35)%. [Conclusions] This study provides theoretical reference and technical support for the popularization and application of A^(2)O-MBBR integrated process.

关键词： A^(2)O-MBBR process Rural domestic sewage Nitrogen and phosphorus removal

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国光伏装备制造业空间布局演化及影响因素分析

引用

地理研究 2024年第3期43卷 679-700页

作者：练文华张晓平吴爱萍宋佳雯中国科学院大学资源与环境学院北京100049

在经济高质量发展、构建低碳高效能源体系与“双碳”目标的发展背景下,中国光伏装备制造业作为战略性新兴产业得到了快速发展,对其时空布局演化特征及影响因素的研究具有重要的理论与实践意义。本文基于2000—2021年企业数据和城市社会... 详细信息

在经济高质量发展、构建低碳高效能源体系与“双碳”目标的发展背景下,中国光伏装备制造业作为战略性新兴产业得到了快速发展,对其时空布局演化特征及影响因素的研究具有重要的理论与实践意义。本文基于2000—2021年企业数据和城市社会经济数据,刻画了中国光伏装备制造业时空布局演化特征,并采用随机效应面板Tobit模型探究了光伏装备制造企业区位选择的主要影响因素及作用机制。研究发现:(1)中国光伏装备制造企业主要分布在江苏、山东、河北、广东等产业基础较好的地区,并呈现自东部向中西部地区扩散的趋势。(2)中国光伏装备制造业的空间扩散主要表现为邻近扩散、等级扩散和通道扩散三类模式。(3)研究期间,制造业基础、碳排放总量、科技创新水平、政策补贴力度、核心企业空间邻近性是中国光伏装备制造业空间布局演化的主要驱动因素,但各因素的作用强度存在显著的时空差异。(4)中国光伏装备制造业主要呈现三种布局模式:市场-成本导向型、政策-资源导向型和综合导向型。随着国内外市场竞争环境的变化,以增强产业链安全、供应链安全和整体韧性为目标的多元化布局模式日益显著。本研究有望为中国光伏装备制造业的空间布局优化提供理论基础与决策参考。

关键词：光伏发电装备制造业时空分析 Tobit模型区位选择空间布局优化

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

计算机三维动画在虚拟现实技术中的应用

引用

集成电路应用 2024年第1期41卷 204-205页

作者：吴爱萍江苏省如皋第一中等专业学校江苏226500

阐述计算机三维动画在职业教育中的应用案例,包括制作教育动画、设计虚拟实验室、构建模拟环境。分析计算机三维动画在虚拟现实中面临的应用挑战、提出解决方案。

关键词：虚拟现实三维动画模拟环境

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

粤港澳大湾区经济与物流协调发展策略研究

引用

中国商论 2024年第11期 86-89页

作者：吴爱萍刘海粟广东理工学院经济管理学院广东肇庆526100

随着粤港澳大湾区的建设不断深入,区域经济和物流协同发展越来越凸显,物流业是区域经济的重要组成部分,是推动经济发展的重要力量,既为经济发展提供了保障,也激发着区域内各种资源的优化配置和整合。因此,建设粤港澳大湾区经济与物流协... 详细信息

随着粤港澳大湾区的建设不断深入,区域经济和物流协同发展越来越凸显,物流业是区域经济的重要组成部分,是推动经济发展的重要力量,既为经济发展提供了保障,也激发着区域内各种资源的优化配置和整合。因此,建设粤港澳大湾区经济与物流协调统一发展,促进湾区经济合作和资源互利共赢具有重要的实践作用。本文对区域经济与物流协同发展进行研究,探索粤澳港大湾区经济与物流协同发展机理,发现在协同发展过程中存在科技创新能力不足、专业人才供需不对称、过度投资和重复建设及物流行业集中度不高等情况。本文提出了湾区经济与物流协同发展对策方针,通过推动湾区科技创新发展;引进高校,培养特色人才;引导外资流向;促进制造业转型升级来推动湾区各产业全面发展。

关键词：粤港澳大湾区区域经济物流产业制造业协调发展

来源：

维普期刊数据库博看期刊

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

低频超声测井仪主控系统设计与实现

引用

长江大学学报（自然科学版） 2024年第4期21卷 56-62页

作者：何小英刘付火吴爱平长江大学电子信息与电气工程学院湖北荆州434023 中国石油集团测井有限公司测井技术研究院陕西西安710077 苏州城市学院计算科学与人工智能学院江苏苏州215104

针对低频超声测井仪声波发射、数据采集及数据传输于一体的控制要求,设计了一种基于DSP+FPGA异构控制技术的新型主控系统。该系统使用DSP作为主控制器,通过CAN总线与井下电缆遥传通信,根据接收的指令产生控制时序,使用有限状态机完成工... 详细信息

针对低频超声测井仪声波发射、数据采集及数据传输于一体的控制要求,设计了一种基于DSP+FPGA异构控制技术的新型主控系统。该系统使用DSP作为主控制器,通过CAN总线与井下电缆遥传通信,根据接收的指令产生控制时序,使用有限状态机完成工作流程控制,创新性地采用基于加权马氏距离的健康度评估方法评判仪器工作状态。使用FPGA作为从控制器,采用指令数据通道独立控制方法实时转发控制指令,同步声波激发与采集,实时接收声波数据。采用基于自定义并口双口RAM的协同通信机制完成DSP与FPGA之间的数据传输。采用差分传输技术实现与发射系统、采集系统之间的通信。测试表明:该主控系统通信误码率低,控制实时性高,状态评估准确,具备声波发射、数据采集及数据传输一体化控制能力,满足低频超声测井仪控制要求。

关键词：低频超声测井仪 DSP+FPGA异构控制加权马氏距离协同通信机制

来源：

维普期刊数据库

同方期刊数据库博看期刊评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：