检索结果-南通市图书馆

We trace the conceptual basis of the Multi-Band Approach (MBA) and recall the reasons for its wide following for composite superconductors (SCs). Attention is then drawn to a feature that MBA ignores: the possibility that electrons in such an SC may also be bound via simultaneous exchanges of quanta with more than one ion-species—a lacuna which is addressed by the Generalized BCS Equations (GBCSEs). Based on several papers, we give a concise account of how this approach: 1) despite employing a single band, meets the criteria satisfied by MBA because a) GBCSEs are derived from a temperature-incorporated Bethe-Salpeter Equation the kernel of which is taken to be a “superpropagator” for a composite SC-each ion-species of which is distinguished by its own Debye temperature and interaction parameter and b) the band overlapping the Fermi surface is allowed to be of variable width. GBCSEs so-obtained reduce to the usual equations for the Tc and Δ of an elemental SC in the limit superpropagator → 1-phonon propagator;2) accommodates moving Cooper pairs and thereby extends the scope of the original BCS theory which restricts the Hamiltonian at the outset to terms that correspond to pairs having zero centre-of-mass momentum. One can now derive an equation for the critical current density (j0) of a composite SC at T = 0 in terms of the Debye temperatures of its ions and their interaction parameters— parameters that also determine its Tc and Δs;3) transforms the problem of optimizing j0 of a composite SC, and hence its Tc, into a problem of chemical engineering;4) provides a common canopy for most composite SCs, including those that are usually regarded as outside the purview of the BCS theory and have therefore been called “exceptional”, e.g., the heavy-fermion SCs;5) incorporates s±-wave superconductivity as an in-built feature and can therefore deal with the iron-based SCs, and 6) leads to presumably verifiable predictions for the values of some relevant parameters, e.g., the

关键词： Hetero-Structured Superconductors Multi-Band and Generalized BCS Equations-Based Approaches Unified Treatment of Cuprates and Fe-Based Superconductors Quest for clues about Raising Tc

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

Microbial Aortitis with Aneurysm Formation

引用

World Journal of Cardiovascular Surgery 2014年第11期4卷 181-185页

作者： Richard Raghoo Marleen J. Noeverman Ronald Hoekstra Rob Geelkerken Goos D. Laverman Leiden University Medical Center Department of Nuclear Medicine Leiden Netherlands 2ZGT Hospital Department of Internal Medicine Almelo Netherlands ZGT Hospital Department of Internal Medicine Almelo Netherlands MST Hospital Department of Vascular Surgery Enschede Netherlands

A 68-year-old man who presented with periodic fever and generalized weakness was diagnosed with Enterococcus faecalis bacteraemia from an infected abdominal aneurysm. The aneurysm was new: aortic dilatation was absent a year before. In such patients the diagnosis “microbial aortitis” is more appropriate than “mycotic aneurysm”. We discuss the pathophysiology, epidemiology, prognosis and treatment of this condition.

关键词： Mycotic Aneurysm Potential Diagnostic clues Enterococcus Crawford-Procedure

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

On How to Guess Meanings of Unknown Words in Reading Materials the Importance of Context

引用

海外英语 2013年第1X期 54-55页

作者：胡燕江阴职业技术学院外语系

While reading plays a very important role in English study, many English language learners find it very difficult to fully comprehend some reading materials on account of many unknown words in them. This essay mainly discusses one technique of guessing meanings of new words according to context clues, thus emphasizing the importance of context.

关键词： meanings of unknown words context clues reading ma

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

The Research of Memory Model Based on Granular Computing

The Research of Memory Model Based on Granular Computing

引用

2012年计算机应用与系统建模国际会议

作者： Xu Wenchao Xue Qing Wang Enjuan Zheng Changwei Academy of Armored Forces Engineering AAFE Vocational Education Center of Shandong Yishui VECSY

To simulate human memory, this paper introduces granular computing into modeling of memory, establishes a three order system, divides the memory model into instantaneous memory module, working memory module and the long-term memory module, filters out the memory information, granular coding the information that be noted, analysis of the characteristics of long-term memory information, proposes the long-term memory information retrieval method, researches the forgetting.

关键词： Memory model Granular coding clues Forgetting

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

How to Make Inference in Reading

引用

海外英语 2013年第3X期 31-32页

作者：何少芳内蒙古商贸职业学院内蒙古呼和浩特010010

Students often have difficulties in reading comprehension because of too many new and unfamiliar words,too little background knowledge and different patterns of thinking among different *** this thesis,I recommend applying context clues,synonyms or antonyms,examples,definitions or explanations,cause/effect clues and background clues to make inference when we read texts.

关键词： reading comprehension clues inference

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

How to guess the meaning of new words from context

引用

新东方英语（中学版） 2019年第3期 143-143页

作者：凌灿深圳市南山区太子湾学校

Regarding previous studies on word-guessing strategy,the teaching context in Chinese ESL classroom and the charac?teristic of Chinese students,I would illustrate the appropriate way of teaching from three perspectives... 详细信息

关键词： guessing from context focus in the context the local contextual clues the wider contextual clues

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

Find the Message Puzzle

引用

疯狂英语（初中天地） 2017年第2期 57-57页

作者： Julie Mason 不详

Instructions: Answer the clues (information which helps you find the answer) from 1–20. Put a line through each answer—the first one is done for you. In the boxes which you have not put a line through, you will find... 详细信息

关键词： clues boxes

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

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

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

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：