IA／MA纯棉织物无甲醛DP整理技术探讨

本文通过单因素分析和多元线性回归分析，确定了ＩＡ／ＭＡ纯棉无甲醛ＤＰ整理的最佳工艺，该法能获得相当高的ＤＰ级和干湿折皱回复角，其它指标也满足ＤＰ整理的要求。     

PA／PP塑料合金的研制

研究了ＰＡ／ＰＰ合金体系的制备和力学性能，结果表明，加入马来酸酐对ＰＰ进行接枝改性后，与ＰＡ共混可以提高合金体系的力学性能。当引入第三组分ＥＰＤＭ或ＮＢＲ组成三元体系ＰＡ／ＰＰ／ＥＰＤＭ或ＰＡ／ＰＰ／ＮＢＲ，可以大幅度提高合金体系冲击强度，且三元组分ＰＡ／ＰＰ／ＥＰＤＭ与ＰＡ／ＰＰ／ＮＢＲ的力学性能接近，可以用ＮＢＲ替代ＥＰＤＭ混入ＰＡ／ＰＰ合金体系中，降低产品成本。     

螺旋桨叶片几何形状的PDE设计方法

讨论了螺旋桨叶片几何开头的模拟方法。一般的叶片模拟方法，如Ｂ样条内插法，需要大量的控制点才能予以模拟和描绘。偏微分方程法ＰＤＥ则将叶的表示方法作为边值问题处理，只需要设定一个小参数组，就可以生成光顺的叶片几何表面，这个小参数组是非常重要的，这不仅使螺旋桨的设计变得简单，同时在实际设计中，也具有很大的优越性。‘     

计算机控制的电化学成核测量与分析系统的研制

用ＰＣ机及Ａ／Ｄ、Ｄ／Ａ转换下，恒电仪组合了一套电化学测及数据分析系统，并介绍了有关观测信号自理技术，应用线性回归法进行曲线拟合，从而得到了电化学成核动力学参数，实际测量结果表明具有较好的可靠性和测量精度。     

基于 STEP 机械零件的 CAD/CAPP/CAM 集成工具

ＳＴＥＰ标准是国际标准化组织正在开发的计算机集成制造系统信息集成的产品数据表达与交换标准。以ＣＡＤ／ＣＡＰＰ／ＣＡＭ系统为背景，开发了ＳＴＥＰ信息集成工具ＰＭＳＳ。为了使产品数据操作方便与灵活，该工具可以对产品数据进行查询、修改及ＳＴＥＰ文件的重构，并提供ＳＤＡＩ接口、Ｃ语言的调用，以及ＳＴＥＰ中性文件的前／后处理器设计手段，使ＣＡＤ、ＣＡＰＰ、ＣＡＭ各功能子系统方便地达到集成与共享。     

刚性无机粒子对PDMS／PU共混体系增强改性研究（I）

采用刚性无机粒子（ＳｉＯ２）填充不相容聚二甲基硅氧烷／聚氨酯（ＰＤＭＳ／ＰＵ）共混体系，重点研究了ＳｉＯ２表面处理剂种类、ＳｉＯ２填充量对不同结构的ＰＤＭＳ／ＰＵ共混体系力学性能的影响关系，研究结果表明：ＳｉＯ２经过适当偶联剂表面处理后，能显著地提高ＰＤＭＳ／ＰＵ（Ｍ）、ＰＤＭＳ／ＰＵ（Ｐ）共混物的力学性能，其抗张强度分别由３．４ＭＰａ、４．５ＭＰＡ提高到１２．３ＭＰａ和９．０ＭＰａ。     

CIM环境下非回转体零件NC编程系统的开发与研究

本文对当前ＮＣＰ系统的发展状况及其在集成环境下运行存在的问题进行了分析和研究，提出在ＣＩＭ环境下ＮＣＰ系统设计的策略，试图运用特征理论解决ＣＡＤ／ＮＣＰ、ＣＡＰＰ／ＮＣＰ的集成问题，文中提出了一套ＣＡＤ／ＮＣＰ、ＣＡＰＰ／ＮＣＰ新的接口方式，以期从特征底层把ＣＡＤ、ＣＡＰＰ、ＮＣＰ有机地统一起来。     

动态硫化PP／EPDM强化增韧机理的动态力学研究

采用动态力学试验方法，研究了不同ＥＰＤＭ含量的动态硫化和简单共混两种ＰＰ／ＥＰＤＭ材料动态力学响应的差异及其特征。结果显示：与简单共混ＰＰ／ＥＰＤＭ相比，动态硫化ＰＰ／ＥＰＤＭ具有ΔＴｇ小，内耗峰扩宽程度大，低温和室温内耗峰强度高，所处温度低，６０－７０℃时内耗峰强度发生高低变位，在ＥＰＤＭ相的α转变以下还显示β和γ次级转变等特性。     

阻隔性HDPE／MPE／PA1010共混体系结晶与熔融行为的研究

用ＤＳＣ研究不同组成的ＨＤＰＥ／ＭＰＥ／ＰＡ１０１０共混体系的结晶与熔融行为，实验结果表明，在ＭＰＥ存在下，尼龙１０１０促进了ＨＤＰＥ的结晶 ，共混体系阻隔性能的提高并非完全全是由于尼龙１０１０分散相对渗透剂分子的阻隔作用，     

刚性无机粒子对PDMS／PU共混体系增强改性研究（Ⅰ）

采用刚性无机粒子（ＳＩＯ２）填充不相容聚二甲基硅氧烷／聚氨酯（ＰＤＭＳ／ＰＵ）共混体系．重点研究了ＳｉＯ２表面处理剂种类、ＳｉＯ２填充量对不同结构的ＰＤＭＳ／ＰＵ共混体系力学性能的影响关系．研究结果表明：ＳｉＯ２经过适当偶联剂表面处理后，能显著地提高ＰＤＭＳ／ＰＵ（Ｍ）、ＰＤＭＳ／ＰＵ（Ｐ）共混物的力学性能，其抗张强度分别由３．４ＭＰａ、４．５ＭＰａ提高到１２．３ＭＰａ和９．０ＭＰａ．     

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