灌浆在清水河水库管涌封堵中的应用

本文介绍高水位情况下对土石坝管涌通道进行灌浆封堵所采用的灌浆材料、灌浆工艺和效果.     

"授人以鱼"-"授人以渔"-"授人以池"——漫谈教学三种模式

"授人以鱼"是直接把"鱼"(教学结果)给别人."授人以渔"是直接把"怎样捕鱼"(学习方法)教给别人."授人以池"是间接给人养鱼的原始材料,让别人通过"组料养鱼-学会养鱼-收获捕鱼"这个过程实践,从而获得知识和能力.笔者分析三种教学模式,学到一些教学之法.     

从"X于"结构来看"V+P+N"结构的发展趋势

"V+P+N"是一类常用的结构,性质比较复杂.本文首先综述对"V+P+N"结构研究的几种观点;然后根据原型理论,通过时"X于"结构的考察来预测"V+P+N"结构的发展趋势;最后用方言材料来为我们的观点提供佐证.     

试论小提琴演奏中的"动"与"静"

本文就小提琴教学与演奏中,生理机能及演奏心理中的"动"与"静"之间的表现及辩证关系,作初步的分析研究.     

日语助词"は"与"が"的教学要领

学习日语时,掌握日语助词的用法是学习的难点,也可以说是教学的难点、重点.尤其是助词"は"与"が"的用法的教学是助词教学的一大难点之一.本文根据本人多年的学习和教学经验,举例来探讨"は"与"が"的教学要领.     

英汉颜色词"yellow"和"黄色"的文化内涵对比研究

文化是人类社会赖以生存和发展的基础.语言是构成文化系统的重要因素之一.而随着中西文化交流的不断深入,人们也越来越多地认识到具有深刻文化内涵的颜色词不可避免地成为跨文化交际的一个障碍.因此本文作者通过对比英汉语中具有相同物理属性和不同文化内涵的"yellow"和"黄色"以体现两种语言文化背景所折射出的文化内涵的异同.由于受到民族的语言习惯,地理位置,历史背景,传统习惯,民族心理,思维方式,以及宗教信仰等因素的影响,"yellow"和"黄色"都反映了各自民族的文化特点.外语学习者应该深刻领会语言,了解其所承载的文化信息,以及两个民族在文化价值观念上的差异从而进一步地提高跨文化交际能力.     

略说"于"字构形与用法之变化

"于"字的本体极有可能是一个表吹奏乐器之类的象形文字.但在我们能够见到的早期材料中,其本义由于受到记词表义的限制,却很少在语言中使用.在古代文献里,"于"字一般都被用作借字记词的符号,除被用作国名和姓氏之外,多具有虚词中连词与介词的表达功能,有时也可与其他词共同构成复式虚词.     

"冲击矛"机器人在土中的有限元仿真模型

以“冲击矛”机器人样机研制为研究背景,针对“冲击矛”机器人在土中的三维实体面-面接触问题,运用Drucker-Prager屈服准则为判据,将土体视为DP材料,其塑性行为被假定为理想弹塑性,运用有限元分析手段,对“冲击矛”机器人在土中对土的作用加以研究,通过土体的应力、应变来求出机器人在土中的受力情况;建立机器人在土中的有限元分析模型,并通过机器人在土中的实验来验证模型的正确性;同时,可为机器人设计优化和性能分析提供可靠的依据.     

大块金属玻璃剪切带形成的“原位”压缩实验研究

对一种锆基大块金属玻璃材料进行了室温下的准静态SEM"原位"压缩实验,并对其剪切带行为进行了研究.测得的宏观应力应变曲线表现出理想弹塑性响应.对样品变形过程中和断裂后的表面剪切带斑图进行的分析表明,多重剪切带的形成及其交割和分叉行为能显著提升其金属玻璃材料的塑性变形能力.采用Mohr-Coulomb模型对其断裂偏离最大剪应力平面的现象进行了描述.基于金属玻璃塑性变形的自由体积模型,对剪切带交割点产生的纳米尺度空洞和微裂纹形成机理进行了分析.图6,参16.     

"教"与"玩"结合是小学体育教学的有效方法

"教"与"玩"结合是小学体育教学的有效方法.其依据:小学生的情趣特点、身体素质、接受能力、成长需求.基本方法:集分结合、课间穿插、命题发挥、内外联系.原则要求:服务中心、寓教于"玩"、循序渐进、活而不乱.实践结果:增强了学生参加体育锻炼的兴趣,强化了学生的体能锻炼,加快了学生的个性发展,促进了学生的智力提高."教"与"玩"结合的方法,是改善教学方法提高教学质量的必然选择,应在小学体育教学中继续坚持运用和完善这种教学方法.     

Markedness and its Interpretation in Language Use

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.     

Features of Women's language

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.     

低渗透非均质砂岩油藏启动压力梯度研究

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

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.     

Achieving Unusual States of Matter Under High Pressure

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-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

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-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

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     

Call for Papers

<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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has