Metal-organic frameworks enable broad strategies for lithium-sulfur batteries     

Cheng Zhou  Zhaohuai Li  Xu Xu  Liqiang Mai 《国家科学评论(英文版)》2021,8(12)

The lithium-sulfur (Li-S) battery is considered to be a potential next-generation power battery system, however, it is urgent that suitable materials are found in order to solve a series of challenges, such as the shuttle effect and lithium dendrite growth. As a multifunctional porous material, metal-organic frameworks (MOFs) can be used in different parts of Li-S batteries. In recent years, the application of MOFs in Li-S batteries has been developed rapidly. This review summarizes the milestone works and recent advances of MOFs in various aspects of Li-S batteries, including cathode, separator and electrolyte. The factors affecting the performance of MOFs and the working mechanisms of MOFs in these different parts are also discussed in detail. Finally, the opportunities and challenges for the application of MOFs in Li-S batteries are proposed. We also put forward feasible solutions to related problems. This review will provide better guidance for the rational design of novel MOF-based materials for Li-S batteries.  相似文献   

基于双向最大匹配和HMM的分词消歧模型*   总被引：1，自引：0，他引：1  

麦范金  王挺 《现代图书情报技术》2008,24(8):37-41

提出一种消减分词切分歧义的模型。利用正向和逆向最大匹配方法对中文文本信息进行分词,基于隐马尔科夫模型对两次最大匹配的分词结果进行对比消歧,得到较为精确的结果。整个过程分为歧义发现、歧义抽取、歧义消除3个过程。测试结果显示,该模型能有效地降低分词歧义引起的错误切分率。  相似文献   

再论“V个VP”结构中“个”字的性质     

陆脉 《苏州教育学院学报》2008,25(2):66-69

句法分析中,“V个VP”结构常以其独特的结构特征吸引专家、学者们的注意。他们的研究视点大多聚焦在“个”的性质上,而对“VP”的重视不够,即使在论述“个”时也是说法不一。从“具体与抽象”、“指称与陈述”等方面的分析,可以看出“个”字的性质日益边缘化且在与“VP”搭配中存在“游移”这一现象。  相似文献   

论中国古代宇宙观与传统武术之哲学基础     

刘锋  史兵  郭振东  古丽给娜.赛买提  帕尔哈提.买买提 《北京体育大学学报》2017,40(8):120-125

摘要：宇宙观是影响一个思想体系及社会制度的重要因素，传统武术体系的形成与发展也离不开对古代宇宙观的认识。为丰富武术哲学体系，揭示中国古代宇宙观与传统武术形成之间的哲学基础，主要采用文献资料法，在古文献史料的基础上阐述古人从对宇宙认识，从中提取传统武术哲学之精华，认为传统武术哲学的形成前提是对宇宙的认识，并超越了神论限制,走向发展的正途；中国古代气论、道论、太极发生论、宇宙生命整体论影响着传统武术哲学的本质观、修炼境界观、平衡观和武术哲学的基本理念。该研究不仅说明武学产生的思想基础，丰富了武学的认识论体系，而且揭示了传统武术哲学的发展过程与规律，对我们认识武学体系的内在精髓提供启示和借鉴。  相似文献   

公共图书馆开发信息产业构想   总被引：2，自引：0，他引：2  

麦群忠 《图书馆界》1999,(1):19-23

文化产业是第三产业的重要组成部分,对加强我国社会主义精神文明建设,提高中华民族的思想文化素质,丰富群众精神文化生活,促进经济发展以及对外文化交流都起着重要作用.  相似文献   

Changing views of teachers and teaching in Vietnam     

Huong Nguyen Thi Mai  Christine Hall 《Teaching Education》2017,28(3):244-256

In order for Vietnam to seek better international integration into an increasingly globalised world, the Vietnamese Government has launched educational reforms requiring teachers to adopt ‘Western’ constructivist pedagogies. This paper reports on an action research study in a Vietnamese teacher training institution which found that Vietnamese student teachers were willing to accommodate and accept change and were often very enthusiastic about the ‘Western ideas’ of teaching and learning, but that their unquestioning respect for the authority of their tutors remained firmly fixed. The data also showed that the students’ tutors had a relatively limited exposure to the ‘Western theories’ and their implications and therefore did not model or demonstrate the theories effectively. The paper draws on these findings to argue that the focus for transforming Vietnamese teachers’ practice should be on promoting the responsibility of teacher educators to introduce student teachers to new ideas about the processes of teaching and learning. This strategy is likely to be more supportive of student teachers’ development as it allows them to separate the processes of teaching from culturally dominant beliefs about roles which are part of their established identities.  相似文献   

高校图书馆对OA资源的组织与揭示——以"211工程"院校为例     

麦淑平 《情报资料工作》2010,(6)

首先在广义的层面上提出开放存取(OA)的定义,并以此为基准,对211工程院校图书馆揭示利用OA资源的情况进行调查.在系统分析调查结果后,充分肯定211高校图书馆揭示OA资源的成果,并指出其在揭示方式及揭示内容上存在的问题.最后,有针对性地提出改进揭示OA资源工作的几点措施.  相似文献   

高校“形势与政策”课实践性教学探讨     

麦达松 《科教文汇》2012,(21):25-26

受到传统教学观念的影响,高校的＂形势与政策＂教学还存在一些问题,本文总结了这些问题,并提出了高校＂形势与政策＂实践性教学策略,希望对高校思想政治工作的进行有所帮助。  相似文献   

浅析示范性高职院校的标杆作用     

麦秋玲 《科教文汇》2012,(33):175-175,178

示范性高职院校的标杆作用可以分为示范作用和引领作用,本文通过分析示范性高职院校在专业建设、师资队伍建设和实训基地建设等方面的案例,说明高职院校的标杆作用对学校自身建设和对口帮扶院校,均可不断超越自己、追求卓越.  相似文献   

寓责任心培养于中学生思想品德教学     

麦活萍 《佳木斯教育学院学报》2010,(6)

责任心培养是中学生思想品德教育的重要内容.本文在阐述中学生责任心培养重要性的基础上,通过中学生责任心培养的心理结构分析,提出学校寓责任心培养于中思想品德教学的途径.  相似文献