检索结果-南通市图书馆

MoS2-based anode materials for lithium-ion batteries:Developments and perspectives

在线全文

学校读者我要写书评

暂无评论

Particuology 2024年第4期87卷 240-270页

作者： Lianyu Zhao Yishan Wang chuncheng Wei Xiaoxiao Huang Xueqian zhang Guangwu Wena School of Materials Science and Engineering Shandong University of TechnologyZibo255000China Schoolof Materials Science and Engineering Harbin Institute of TechnologyHarbin10001China

In recent years,significant progress has been achieved in the creation of innovative functional materials for energy storage and *** to their distinct physicochemical characteristics,ultrathin nanosheets composed of common layered transition metal sulfide materials(MoS2)have demonstrated promise as high-capacity anode materials for lithium-ion batteries(LIBs).Nevertheless,their practical application is severely limited by the tendency of monolayer nanosheets to restack due to strong van der Waals forces,dramatic volume changes during successive cycles,and low intrinsic *** research advances have shown that composite structures and nanowire morphologies with specific morphologies effectively overcome these *** paper reviews the recent research progress on molybdenum disulfide-based composites as anode materials for LIBs and discusses in detail the struc-tural characteristics of pure molybdenum disulfide and other composite forms of molybdenum *** addition,the phase engineering,defect engineering,and lithium storage mechanisms of molybdenum disulfide and the synthesis of molybdenum disulfide-based nanocomposites by different preparation methods are focused ***,we review the design(structure),recent developments,and challenges of novel anode materials and consider their electrochemical performance in Li-ion batteries.

关键词： Lithium-ion battery MoS_(2)-Based anode composites Synthesis methods Defect engineering Lithium storage mechanism

Cobalt phosphide-based composites as anodes for lithium-ion batteries:From mechanism,preparation to performance

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

Particuology 2024年第5期88卷 11-31页

作者： Bo Lan Yishan Wang Jialei Lu Dongdong Liu chuncheng Wei Xueqian zhang Xiaoxiao Huang Guangwu Wen School of Materials Science and Engineering Shandong University of TechnologyZibo255000China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin150001China School of Materials Science and Engineering Harbin Institute of TechnologyWeihai264209China

With the further requirements of electronic products and powered vehicles,the development of a new generation with low-voltage and high-capacity anode materials is crucial for lithium-ion batteries(LIBs).Transition metal phosphides,especially cobalt phosphide(CoP)composites,have become a research hotspot for LIBs anode materials in recent years due to their high theoretical specific capacity,low polarization,and suitable voltage *** review first systematically discusses the lithium storage mechanism and preparation methods of CoP in current ***,the applications of CoP anode materials in LIBs are categorically reviewed,including the composites of CoP with various types of carbon materials and ***,the challenges and future development directions of CoP anode materials are summarized to provide guidance for further improving the lithium storage performance of CoP and its practical applications.

关键词： CoP Composites Preparation Anodes Lithium-ion batteries

一种可用于蛛网膜下腔阻滞中不同药液比重教学的3D透明椎管模型研究

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

中国毕业后医学教育 2024年第4期8卷 304-307页

作者：赵元愉潘乃凡孙旭芳刘畅关慧文封俊杰程圣权张霄张春城中山大学附属第八医院(深圳福田)麻醉科广东深圳518000 吉林大学第一医院麻醉科吉林长春130000 吉林大学第二医院麻醉科吉林长春130000

目的评估吉林大学第二医院麻醉科发明的应用3 D打印技术制造的人体透明椎管管腔模型是否符合蛛网膜下腔阻滞中不同药液比重教学的需要。方法选取该院2021级麻醉科住院医师19人进行蛛网膜下腔阻滞教学培训,在3 D人体透明椎管模型实验平台... 详细信息

目的评估吉林大学第二医院麻醉科发明的应用3 D打印技术制造的人体透明椎管管腔模型是否符合蛛网膜下腔阻滞中不同药液比重教学的需要。方法选取该院2021级麻醉科住院医师19人进行蛛网膜下腔阻滞教学培训,在3 D人体透明椎管模型实验平台上,使用电子泵匀速泵入定量的亚甲蓝染色不同比重局麻药液,观察并记录药液扩散规律,及完成既定调查问卷内容填写。结果通过3 D打印透明椎管实验平台可以直观观察到不同比重局麻药的扩散规律,轻比重药液沿呈梭形贴在管腔上侧壁向头尾侧扩散,扩散范围和速度较等比重和重比重更广、更快;等比重药液在管腔内均匀分布并扩散,扩散范围比重比重和轻比重小;重比重药液侧卧位时范围呈梭形并大部分堆积在骶尾侧,在改变体位时向位置更低的部分进行扩散。84.2%的住院医师认为该模型弥补了视频教学的不足;89.5%认为该模型教学提升了对腰麻穿刺操作的理解,且模型演示的药液扩散更加容易理解;94.7%推荐该模型可以进行今后的腰麻教学。结论不同比重局麻药液在透明椎管模型内扩散情况不同,符合在腰麻中不同药液比重教学的需要。

关键词：麻醉学腰麻阻滞平面住院医师规范化培训

Bias distribution and regulation in photoelectrochemical overall water-splitting cells

在线全文

学校读者我要写书评

暂无评论

National Science Review 2024年第4期11卷 141-150页

作者： Kun Dang Siqin Liu Lei Wu Daojian Tang Jing Xue Jiaming Wang Hongwei Ji chuncheng Chen Yuchao zhang Jincai Zhao Key Laboratory of Photochemistry CAS ResearchEducation Center for Excellence in Molecular Sciences Institute of Chemistry Chinese Academy of Sciences University of Chinese Academy of Sciences

The water oxidation half-reaction at anodes is always considered the rate-limiting step of overall water splitting（OWS）,but the actual bias distribution between photoanodes and cathodes of photoelectro chemical（PEC） OWS cells has not been investigated *** this work,we find that,for PEC cells consisting of photoanodes（nickel-modified n-Si [Ni/n-Si] and α-Fe2O3） with low photovoltage(Vph 1V,the bias required for cathode activation can be significantly reduced,exhibiting a kinetics-controlled *** investigations show that the bias distribution can be regulated by tuning the electrolyte pH and using alternative half-reaction ***,a volcano plot is presented for the rational design of the overall reactions and unbiased PEC *** by this,an unbiased PEC cell consisting of a simple Ni/n-Si photoanode and Pt cathode is assembled,delivering a photo current density of 5.3±0.2 mA cm-2.

关键词： photoelectrochemistry overall reaction cell bias distribution photoanode water splitting

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

在破产重整程序中引入企业合规的制度构建

人民司法 2023年第34期 9-14页

作者：张春城北京市第一中级人民法院

党的二十大报告指出,要完善中国特色现代企业制度。企业破产制度是中国特色现代企业制度的重要组成部分,而企业破产制度改革的重要趋势是在适应市场经济体制发展的基础上,逐渐完善以企业挽救为目标的再建型债务清理制度,重整制度最为典... 详细信息

党的二十大报告指出,要完善中国特色现代企业制度。企业破产制度是中国特色现代企业制度的重要组成部分,而企业破产制度改革的重要趋势是在适应市场经济体制发展的基础上,逐渐完善以企业挽救为目标的再建型债务清理制度,重整制度最为典型。习近平总书记强调:“新时代新阶段的发展必须贯彻新发展理念,必须是高质量发展。”通过重整程序挽救企业进而实现企业的高质量发展,是“企业破产法同时也是最强有力的企业拯救法”的应有之义。

关键词：现代企业制度企业破产制度企业破产法制度构建重整制度新发展理念高质量发展

Biliary spontaneous dislodgement spiral stent for short-term biliary drainage in patients undergoing complete stone removal:A randomized controlled study

在线全文

学校读者我要写书评

暂无评论

Chinese Medical Journal 2024年第11期137卷 1363-1365页

作者： Liansong Ye Lifan zhang Yi Mou Xianglei Yuan Wei Liu chuncheng Wu Yonghong Luo Jiang Du Shuai Bai Jia Xie Qiongying zhang Qinghua Tan Ling Liu Bing Hu Department of Gastroenterology and Hepatology West China HospitalMed-X Center for MaterialsSichuan UniversityChengduSichuan 610041China Digestive Endoscopy Medical Engineering Research Laboratory West China HospitalSichuan UniversityChengduSichuan 610041China West China School of Nursing Sichuan UniversityChengduSichuan 610041China

To the Editor:Endoscopic retrograde cholangiopancreatography(ERCP)is strongly recommended for stone removal of *** there is still risk of complications such as post-ERCP cholangitis(PEC)and post-ERCP pancreatitis(PEP).Biliary drainage including endoscopic nasobiliary drainage(ENBD)and biliary stent is considered to reduce the occurrence of PEC and ***,the ENBD tube will cause patient discomfort,and some patients may extract the tube by ***,additional endoscopic stent removal is required after insertion of conventional biliary stent for short-term biliary drainage,increasing medical costs.

关键词： biliary patients stent

Development of Networked NC Practical Training System

在线全文

学校读者我要写书评

暂无评论

Development of Networked NC Practical Training System

Influence of consumption experiences on customers' satisfaction:an empirical study on fresh farm products in Wuhan, China

作者： Hongmei Fan chuncheng zhang School of automation Nanjing institute of technology

With the development of information technology,networked education has become the *** is one of the effective measures to solve many problems in higher education to make full use of the modern information technology educational resources and to carry out the professional teaching based on network *** meet the needs of networked teaching and experiments of NC（Numeric Control） principle course,this paper develops a web-based NC practical training system based on WINDOWS operating system,which uses Tomcat to build a WEB server,and uses JAVA language to manage ORACLE *** networked NC practical training system provides a good platform for the students majoring in numeric *** platform can not only deepen their understanding and mastery of numerical control expertise,but also cultivate their ability of system design and development.

关键词： Networked teaching Numeric control Project practice

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Ecological Economy 2007年第2期3卷 149-158页

作者： Li chuncheng zhang Juntao Li Chongguang College of Economics Management Huazhong Agricultural UniversityWuhan 430070P.R.China

Which factors influence customers’ satisfaction? Which way or path does each factor influence and decide customers’ satisfaction? These problems are the focuses of the research on customers’ satisfaction. This paper analyzes the survey data from some customers in the fresh farm food supermarket of Wuhan City with factor analysis method, multiple linear regression method, etc. The analysis results reveal that: 1) the consumption experiences decide custom- ers’ satisfaction degree through influencing the customers’ expectation and the perceived performance, namely the consumption experiences is the important factor which decides customers’ satisfaction; 2) the consumption experiences that influence customers’ satisfaction is a multi-dimensional construct, including such four dimensions as product consumption experience, service experience, shopping convenience experience, supermarket environment experience; furthermore, the degree that different consumption experiences influence customers’ satisfaction is diverse, and the product consumption experiences are the most important factor. This paper is of realistic significance to a certain extent to enrich the theoretical research on customers’ satisfaction and promote the practice of agricultural product marketing.

关键词：中国消费水平消费者满意度影响因素

Research and development of hydrogen energy safety

在线全文

学校读者我要写书评

暂无评论

Emergency Management Science and Technology 2022年第1期2卷 15-23页

作者： Xianfeng Chen chuncheng zhang Yi Li School of Safety Science and Emergency Management Wuhan University of TechnologyWuhan 430000China

Hydrogen has been recently utilized in many fields due to its recyclability and non-pollution *** fuel cell vehicles and hydrogen refueling stations have become the main carrier of hydrogen energy ***,due to the inflammable and explosive characteristics,the safety problems of hydrogen became *** paper introduces the safety problems and countermeasures of hydrogen fuel cell vehicles and hydrogen refueling *** research progress and achievements of hydrogen energy standards are then comprehensively ***,the development status,existing problems and future development direction of five kinds of optical fiber sensors are pointed out.

关键词： hydrogen characteristics energy