PVC／SBS共混体系的增容技术研究

借助反应性挤出接枝的方法，在ＰＶＣ／ＳＢＳ动态硫化过程中引入顺丁烯二酯矸（ＭＡＡＮ），“就地”产生增容，以改装ＰＶＣ与ＳＢＳ间的相容性。用ＩＲ，ＳＥＭ，ＤＳＣ和力学方法对ＰＶＣ／ＳＢＳ共混体系进行表征，结果表明：此过程可以获得满意的共混效果，可以实现工业化生产．     

[RE(Cl2C4H5O2)3·dipy]·H2O配合物的合成

以 2 ,3一二氯异丁酸根 (Ｃｌ2 Ｃ4Ｈ5Ｏ2-)和 2 ,2′一联吡啶 (ｄｉｐｙ)为配体 ,在丙酮溶液中合成得到配合比ＲＥ3 + :ｄｉｐｙ =1:1、配位数为 8的混配配合物。产物的ＲＥ3 + :ｄｉｐｙ配合比以及ＲＥ3 + 的配位数均与文献[3 ] 、[4]不同。标题配合物的合成与表征工作目前尚未见报道。1　实验部分1.1　主要仪器与试剂ＣＡＲＬＯ -ＥＲＢＡ110 6型元素分析仪 ,Ｎｉｃｏｌｅｔ170 -ＳＸＦＴ红外光谱仪 (ＫＢｒ压片 ) ,日本精工ＥＸＳＴＡＲ系列ＴＧ ＤＴＡ 6 30 0型热分析仪 ,岛津ＵＶ - 2 6 0紫外分光光度计 ,ＤＤＳ - 11型电导率仪 ;2 ,3…     

THESYNTHESIS AND CHARACTERIZATION OF CROSSLINKED GELATIN WITH HYDROPHILIC/ HYDROPHOBIC GRAFTS

以过硫酸钾（ＫＰＳ）－亚硫酸氢钠（ＮａＢＳ）为引发体系，甲基丙烯酸甲酯（ＭＭＡ）及甲基丙烯酸（ＭＡＡ）为接枝单体，制得了具有亲水性与疏水性接枝支链交联明胶．用红外光谱确证了产物结构．实验结果表明，当［ＫＰＳ］＝［ＮａＢＳ］＝６×１０－３Ｍ，［ＭＭＡ］＝６×１０－１Ｍ，Ｇｅｌｘ－ｇ－ＰＭＡＡ＝４ｇ，ＳＬ＝４１００，６０℃反应５小时，接枝率Ｇ％及接枝效率Ｅ％均出现最大值．研究了此类两亲性接枝交联明胶的溶胀行为．     

甲基丙烯酸甲醇与氰乙基化交联淀粉的接枝共聚反应及其改性接枝物对金属离子吸附性能的研究

以ＡＰＳ－ＴＵ和ＡＰＳ－Ｕ为引发体系，研究了氰乙基化交联淀粉与甲基丙烯酸甲酯（ＭＭＡ）的接枝共聚反应规律；ＩＲ，ＳＥＭ表征了产物的结构；当［ＡＰＳ］＝［ＴＵ］＝［Ｕ］＝３×１０－２Ｍ，［ＭＭＡ］＝６×１０－１Ｍ，Ｓ：Ｌ＝４：１００，６０℃，反应６小时时，Ｇ％、Ｅ％值最高．用ＮＨ２ＮＨ２改性后，含－ＣＯＯＮＨＮＨ２功能基的接枝共聚淀粉对Ｃｕ、Ｃｄ、Ｃｒ、Ｐｈ等重金属离子有较好的吸附性能．     

提高聚氯乙烯与丁苯橡胶共混相容性的研究

通过加入各种增容剂（Ｃｏｍｐａｔｉｂｉｌｉｚｅｒ）和采用粉末丁苯橡胶（ＰＳＢＲ）及经接枝、交联改性的粉末丁苯橡胶（ＰＭＳＢＲ），研究了提高聚氯乙烯／丁苯橡胶（ＰＶＣ／ＳＢＲ）共混相容性的途径。物理机械性能测试结果表明：五种增容剂对软质ＰＶＣ／ＳＢＲ共混物的改性效果以粉末丁腈Ｐ８３和丁腈－２６（ＮＢＲ－２６）最佳；粉末橡胶对ＰＶＣ的改性效果优于块状橡胶，ＰＭＳＢＲ对软质ＰＶＣ的改性效果优于以ＮＢＲ－２６作增容剂的块状ＳＢＲ和ＰＳＢＲ；用不同改性方法制得的四种ＰＭＳＢＲ中，以多层乳液接枝改性的ＰＭＳＢＲ－４对ＰＶＣ的改性效果最佳，用它改性硬质ＰＶＣ的缺口抗冲击强度和软质ＰＶＣ的耐寒性，效果皆超过粉末丁腈Ｐ８３。扫描电镜、透射电镜和动态力学谱分析表明：ＰＶＣ／ＰＭＳＢＲ－４共混材料呈良好的韧性断裂，橡胶粒子分散较均匀，相界面模糊，低温Ｔｇ升高，说明ＰＶＣ／ＳＢＲ的相容性获得显著提高     

最新MOTOROLA V998+手机电源电路介绍及开机过程

ＭＯＴＯＲＯＬＡＶ９９８+手机的电源及音频处理模块由一块ＧＣＡＰ（Ｕ９００）完成,ＥＰＲＯＭＴ和ＥＥＰＲＯＭ由一块Ｕ７０１完成,ＳＹＮ-ＭＤＥＭ（频率合成及调制节调）由一块ＭＡＧＩＣ（Ｕ９１３）完成。逻辑控制ＣＰＵ是ＷＨＩＴＥＣＡＰ（Ｕ７００）。１介绍各个电压在逻辑控制下的先后产生过程１．１Ｂ+电压当ＥＸＴ-Ｂ+供电时,Ｕ９００的Ｆ１０脚输出高电平,Ｑ９４２的Ｓ-Ｄ截止,Ｂ+由ＥＸＴ—Ｂ+产生。当ＢＡＴＴ+供电时,Ｆ１０脚输出低电平,Ｑ９４２的Ｓ-Ｄ导通,Ｂ+由ＢＡＴＴ+产生。ＣＲ９４０为隔离二极管。１．２Ｖ-Ｂ０…     

抗人血红蛋白单克隆抗体的制备及鉴定

本研究旨在以粪便潜血试验的靶向物质———人血红蛋白 (ＨＢ)为对象研制抗人血红蛋白单克隆抗体、为开发特异性的潜血免疫诊断试剂盒打下基础。1　材料与方法1.1　人血红蛋白。由健康人血球经生理盐水反复洗涤 ,蒸馏水破坏血球 ,离心 ,最后经ＳｅｐｈａｄｅｘＧ -5 0层析纯化所得 ;抗鼠抗体Ｉｇ亚类Ｉｇ为Ｓｉｇｍａ公司产品。1.2　杂交瘤的制备。按常规方法 ,用纯化人Ｈｂ免疫 6周龄ＢＡＬＢ/Ｃ小鼠 ,共 3次 ,每次间隔 2周 ,5 0ｕｇ/只 .次 ,融合前三天静脉注射人Ｈｂ ,75ｕｇ/只。取小鼠脾细胞与ＳＰ2 /0 骨髓瘤细胞在 5 0 %ＰＥＧ作用下…     

PVC／NBR／SBS三元共混物的形态结构与性能

本文通过冲击试验、动态力学分析（ＭＭＡ）、透射电镜（ＴＥＭ）和扫描电镜（ＳＥＭ）观察，研究了聚氯乙烯／丁腈橡胶／苯乙烯。丁二烯。苯乙烯嵌段共聚物（ＰＶＣ／ＮＢＲ／ＳＢＳ）三元共混物的形态结构和性能，并且讨论了两者之间的关系。ＮＢＲ－２９对ＰＶＣ和ＳＢＳ有较好的增容作用，与ＳＢＳ一起对ＰＶＣ有协同增韧效应。     

数据库中的批量数据录入技术

不论数据库开发应用平台是何种版本,在关系型数据库的程序设计中,一般都需要有原始数据录入或者叫做基础数据采集等功能模块。在以往传统的编程模式中,基本上可以说都是采用逐条数据录入,对应ＦＯＸ系统而言往往不是用ＡＰ－ＰＥＮＤ（如 ＡＰＰＥＮＤ ＢＬＡＮＫ与ＳＣＡＴ ＭＥＭＯＭＥＭＶ、 ＧＡＴＨ ＭＥＭＯ ＭＥＭＶ配合或者ＡＰＰＥＦＲＯＭ ＡＲＲＡ等等）就是用ＩＮＳＥＲＴ（如ＩＮＳＥＲＴＢＬＡＮＫ与ＳＣＡＴ ＭＥＭＯ ＭＥＭＶ、ＧＡＴＨ ＭＥＭＯＭＥＭＶ配合或者ＩＮＳＥＲＴ ＩＮＴＯ－ＳＱＬ）相关的命令来实现原始…     

鼻咽癌细胞株,瘤株中EBV—LMP1基因的检测及变异性分析

采用ＰＣＲ法检测了不同代次的鼻咽癌细胞株、瘤株（ＳＵＮＥ／ＳＵＮＴ）中的ＥＢＶ－ＬＭＰ１基因片断，并分析其变异性。结果发现直到１３１代ＳＵＮＥ、３０代ＳＵＮＴ中仍然能检测到ＬＭＰ１基因片断，且在传代过程中ＬＭＰ１基因未发生变异。但与Ｂ９５－８中的ＥＢＶ－ＬＭＰ１基因相比，ＬＭＰ１基因发生了变异，表现为Ｘｈｏｌ、Ｍｓｐ酶切位点的消失和ＳＳＣＰ单链迁移率的不同。该结果提示变异的ＥＢＶ－ＬＭＰ１基因可能与ＳＵＮＥ／ＳＵＮＴ肿瘤的特性有一定的相关性。     

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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