E—PCE树脂固化反应的研究

通过差示扫描量热法（ＤＳＣ）研究了环氧端基酚酞聚芳醚腈（简称Ｅ－ＰＣＥ树脂）与几种常用固化剂的热效应，测算了Ｅ－ＰＣＥ／ＤＤＳ固化体系固化过程的表观活化能及反应级数。另外，通过ＤＳＣ、ＴＧＡ测试了固化后试样的热性能。     

环氧端基酚酞聚芳醚腈的合成及结构性能表征

由酚酞和２，６－二氯苯甲腈经亲核缩反应制得了含－ＯＫ端基的聚醚腈低聚物，在碱金属碳酸盐Ｋ２ＣＯ３／Ｈ２Ｏ催化下，将其与环氧氯丙烷反应得到了含环氧端基醚醚腈（Ｅ－ＰＣＥ）用ＦＴ－ＩＲ，＾１ＨＮＭＲ和ＤＳＣ等方法地Ｅ－ＰＣＥ树脂的结构性能进行了表征，测定了Ｅ－ＰＣＥ树脂的环氧值，溶解性，分子量及分子量分布，讨论了单体的摩尔比，反应温度，催化剂含量及水含量对产物的影响。     

高含固量聚苯乙烯－聚丙烯酸酯复合乳胶的合成及表征

本文采用种子乳液聚合技术，合成聚苯乙烯－聚丙烯酸酯复合乳液，用ＴＥＭ电镜观察其乳液的形态，用ＧＰＣ方法测定了乳胶聚合物的化学组成。     

[Eu（DBM）3].CPC超微粒的荧光谱及能量传递

用胶体化学方法制备了稀土铕（Ｅｕ）－苯甲酰甲烷（ＤＢＭ）和氯化十六烷基吡啶（ＣＰＣ）同粒水溶胶「Ｅｕ（ＤＢＭ）３」．ＣＰＣ通过光谱性质的测定，结合透射是镜（ＴＥＭ）观测，研究了「Ｅｕ（ＤＢＭ）３」．ＣＰＣ超微粒的粒径对光谱的影响。结果表明：由于「Ｅｕ（ＤＢＭ）３」．ＣＰＣ超微粒的小尺寸效应，其光谱性质明显不同于体相材料，并初步地讨论了尺寸效应分子内能量传递的影响。     

PEO（MMEC,MNEC）—TPC—LDABS高分子单离子导体的设计与合成

合成了三元共聚物ＰＥＯ－ＴＰＣ－ＬＤＡＢＳ、ＭＭＥＣ－ＴＰＣ－ＬＤＡＢＳ和ＭＮＥＣ－ＴＰＣ－ＬＤＡＢＳ，可望成为一类新的高分子固体电解质材料     

[Eu(DBM)_3]·CPC超微粒的荧光光谱及能量传递

用胶体化学方法制备了稀土铕（Ｅｕ）二苯甲酰甲烷（ＤＢＭ）和氯化十六烷基吡啶（ＣＰＣ）超微粒水溶胶［Ｅｕ（ＤＢＭ）３］·ＣＰＣ，通过光谱性质的测定，结合透射电镜（ＴＥＭ）观测，研究了［Ｅｕ（ＤＢＭ）３］·ＣＰＣ超微粒的粒径对光谱的影响．结果表明：由于［Ｅｕ（ＤＢＭ）３］·ＣＰＣ超微粒的小尺寸效应，其光谱性质明显不同于体相材料．并初步地讨论了微粒的尺寸效应对分子内能量传递的影响     

加工番茄多聚半乳糖醛酸酶(PG)基因的cDNA克隆

以加工番茄８７－５为材料,运用反转录ＰＣＲ（ＲＴ－ＰＣＲ）技术成功地将ＰＧ基因的ｃＤＮＡ序列克隆到ｐＧＥＭ－Ｔ载体上,并利用酶切及ＰＣＲ进行了初步鉴定。     

Ha—ras和Ki—ras癌基因转染和细胞对小鼠细小病毒杀伤敏感…

为研究Ｈａ－ｒａｓ和Ｋｉ－ｒａｓ癌基因转染和细胞对小鼠细小病毒（ＭＶＭ）杀伤敏感性间的关系，两个细胞株，即Ｋｉ－ｒａｓ癌基因转株ＤＴ和Ｈａ－ｒａｓ癌基因转化细胞株ＲＥＦ４－３，被用来作为研究材料，体外细胞集落形成率和细胞在裸小鼠体内的成瘤能力测定显示，和对照细胞ＮＩＨ／３Ｔ３相比之这ＲＥＦ４－３和ＤＴ对ＭＶＭ的杀伤作用更敏感，同时，ＤＮＡ杂交和蛋白免疫沉淀实验结果也显示，在ＲＥＦ４－３和ＤＴ细胞中     

法国ELCO种兔体外血清酶的磁化试验

本试验用哈磁化杯磁化ＥＬＣＯ种兔血清５０－１００分钟，立即测定血清淀粉酶（ＡＭＳ）和血清γ－谷氨酰转移酶（γ－ＧＴ）的活性。结果表明：ＡＭＳ酶磁化５０分钟比磁化５０分钟比磁化１００分钟效果显著，与对照组有显著差异；γ－ＧＴ酶磁化１００分钟比磁化５０分钟效果显著，与对照组有极明显差异。     

可聚合性季铵盐及其聚合物的合成与表征

合成了三种含不饱和双键和季铵盐：甲基丙烯酰氧乙基－苄基－二甲氯化铵（ＭＢ－ＤＡＣ）,甲基丙烯酰氧乙基－丁基－二甲基溴化铵（ＭＢＤＡＢ）和甲基丙烯酰氧乙基－乙基－二甲基溴化铵（ＭＥＤＡＢ）,用红外光谱,元素分析,核磁共振谱对其结构进行了表征。用自由基聚合法合成了ＭＢＤＡＣ的均聚物及其与甲基丙烯酸甲酯和苯乙烯的共聚物,并用元素分析、ＧＰＣ,红外光谱等表征了聚合物的结构,用ＤＳＣ和ＴＧ研究了其热稳定性,     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

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     

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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