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1.
本文回顾总结了在版编目在国际国内发展概况,分析了中国期刊实行在版编目的外部环境、客观条件和技术保障,探讨了期刊在版编目版式格式,阐述了期刊在版编目著录内容应特别注意的事项,提出了实施期刊在版编目的三条建议。  相似文献   

2.
访苏印象记     
在赴莫斯科的途中,我们在布列斯特逗留了几个钟点。在那儿,我们看了一场苏联歌剧,在城里逛了一转,并和该城的重要人物见了面。我们在莫斯科躭了一个星期,在  相似文献   

3.
该文首先论述了泛在图书馆的内涵,探讨了图书馆界具有代表性的泛在图书馆观点,详细阐述了泛在公共图书馆的理念和服务模式,明确了泛在公共图书馆的未来发展方向。  相似文献   

4.
信息技术、移动网络等技术形成了泛在学习环境,带来了新的学习模式、学习方式、学习观念的变革,如何在泛在学习环境下设计符合手机的APP学习系统成为了新问题。以泛在学习理论为指导,对泛在学习环境下APP学习系统提出了总体的框架模型,宏观设计了泛在学习环境下由学习系统、管理系统和资源库组成的APP学习系统方案。从学习者在泛在学习环境下学习模式和学习观念的角度,微观设计了3个学习活动支持功能,并对系统功能在泛在学习环境下如何实施做了进一步的阐述,为系统功能开发做好了准备。  相似文献   

5.
祖慰 《世界知识》2010,(12):62-64
在丹妮来到这个世界的时刻,丹妮走了,在柴可夫斯基交响乐《悲怆》的乐声中走了,在古诺—巴赫的《圣母颂》中走了,在她自己朗读美国作家的散文声中走了,她微笑着移民到她的天国去了。  相似文献   

6.
介绍了泛在知识环境的产生背景、内涵、特点,分析了在泛在知识环境下图书馆的泛在服务,探讨了图书馆实现这些泛在服务的保障机制。  相似文献   

7.
本文介绍了长庆油田两个输油站的油品混合样在添加了GY-3型原油降凝剂后的性能,确定了降凝剂在原油输送过程中的最佳配伍浓度,同时分析了原油在长距离输送过程中对降凝剂使用性能的影响因素,预测了输油管道在添加了该降凝剂后的运行风险。  相似文献   

8.
介绍了云计算的概念和特征,阐述了云计算在图书馆的应用,并剖析了云计算在图书馆应用中存在的问题,指出了云计算在图书馆的应用前景。  相似文献   

9.
中国改革开放三十年的伟大成就主要体现在三个方面:坚持和发展了毛泽东思想,在新的时代里推进了马克思主义中国化的伟大进程;解放和发展了生产力,在新的起点上促进了中华民族的伟大复兴;巩固和完善了社会主义制度,在新的格局中谱写了社会主义事业的伟大篇章。  相似文献   

10.
分析了泛在图书馆的发展趋势,探讨了泛在环境下的图书馆信息服务模式,提出了泛在图书馆的构建方法,以及实体图书馆泛在化、信息服务泛在化的方式。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

20.
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