季铵盐 A-l 的相转移催化性能

经实验研究发现具有结构为（Ｃ８～１０Ｈ１７～２１）３Ｎ＋ＣＨ３Ｃｌ－的季铵盐Ａ－ｌ是一种优良的相转移催化剂．在酯化、氧化和烷基化反应中其催化活性要优于聚乙二醇、季磷盐和其它短碳链的季铵盐．Ａ－ｌ在分离过程中不乳化，因而使合成产品易于分离提纯．该催化剂可循环使用，循环使用次数与温度有关．     

季铵盐纤维素衍生物抗静电剂的研究

合成了２，３环氧丙基三乙基氯化铵和季铵盐纤维素衍生物，用１ＨＮＭＲ谱和元素分析表征了它的结构和成分．利用超高电阻计，测定了聚乙烯（ＬＤＰＥ）和含抗静电剂的聚乙烯试片表面电阻．研究发现，添加０．５ｐｈｒ季铵盐纤维素衍生物试片的表面电阻从３．４３×１０１３Ω降至１．６７×１０７Ω，这一结果表明季铵盐纤维素衍生物抗静电效果显著     

焊接CGHAZ相变超塑性及对拉伸断裂性能的影响

藉助于Ｇｌｅｂｌｅ１５００热模拟试验机，采用模拟焊接热循环拘束位移的方法，测定了ＨＴ８０钢模拟ＣＧＨＡＺ的膨胀曲线和拘束应力曲线，研究了ＣＧＨＡＺ的相变超塑性现象，并试验获得了静拉伸强度与塑性．试验结果表明：（１）在模拟焊接ＣＧＨＡＺ中确是存在着相变超塑性，其变形量随着拘束位移的增大而增大；（２）相变超塑性具有使ＣＧＨＡＺ晶粒细化、降低强度和提高塑性的作用，这些都是以往难以实现的问题；（３）焊接过程的强拘束导致ＣＧＨＡＺ发生相变超塑性，不仅降低了ＣＧＨＡＺ的残余应力，而且改善了显微组织与力学性能     

借IAP-4S和高效液相色谱分离和测定铱和铑（英文）

借离子对反相高效液相色谱分离了铱（Ⅳ）和铑（ＩＩＩ） 的２（２咪唑偶氮）苯酚４磺酸（ＩＡＰ４Ｓ）螯合物,并于５６０ ｎｍ 波长处检测之．研究了Ｉｒ（ Ⅳ）和Ｒｈ（ Ⅲ）ＩＡＰ４Ｓ螯合物分离的最宜条件．于Ｎｕｃｌｅｏｓｉｌ Ｃ８ 柱上,用含７．５×１０－３ ｍｏｌ／ＬＫＨ２ＰＯ４Ｎａ２ＨＰＯ４缓冲剂（ｐＨ７．５） 和５．５ ×１０－３ ｍｏｌ／Ｌ溴化四丁基铵的甲醇水（４０：６０,ｖ／ｖ） 作流动相,流速为０．８ ｍＬ／ｍｉｎ． 检测限为１．３ ｎｇ 铱和１．５ ｎｇ 铑．     

链状[Tb（CH3COO）3]n的合成与晶体结构

２－羟基吡啶、Ｎｉ（ＣＨ３ＣＯＯ）２和Ｔｂ（ＣｌＯ４）３在乙腈中反应，得到（Ｔｂ（ＣＨ３ＣＯＯ）３］ｎ，并测定了它的晶体结构．［Ｔｂ（ＣＨ３ＣＯＯ）３］ｎ的晶体为三斜晶系，Ｐ－１空间群，ａ＝７．９１３（１）Ａ，ｂ＝８３３０（１）Ａ，ｃ＝１１．５７３３（２）Ａ，ａ＝７０．２９（１）°，β＝７２．２３（１）°，ｒ＝６５．０３（１）°；［Ｔｂ（ＣＨ３ＣＯＯ）３］ｎ为六配位畸变八面体构型，整个分子是长链多聚结构．     

氯化血红素催化显色反应的研究

研究了氯化血红素作为过氧化物模拟酶对Ｈ２Ｏ２４ＡＡＰＣ６Ｈ５ＯＨ显色反应的催化活性．拟定的光度法可准确地测定０～６ｍｇ·Ｌ－１Ｈ２Ｏ２的含量,对样品进行分析,平均回收率为１０１７％．     

HPMBP和HAP协同萃取部分Ln（Ⅲ）

研究了 １苯基３甲基４苯甲酰基吡唑酮５（ Ｈ Ｐ Ｍ Ｂ Ｐ）和４羟基安替比林（ Ｈ Ａ Ｐ）的氯仿溶液从硝酸介质中对 Ｌｎ（Ⅲ）（ Ｌｎ＝ Ｌａ, Ｐｒ, Ｎｄ, Ｓｍ , Ｇｄ）的协同萃取;通过斜率法确定了萃合物的组成为 Ｌａ２（ Ｐ Ｍ Ｂ Ｐ）６（ Ｈ Ａ Ｐ）３;考察了萃取剂浓度和溶液酸度对萃取机能的影响;测定了 Ｌａ３＋ , Ｐｒ３＋ , Ｎｄ３＋ , Ｓｍ ３＋ , Ｇｄ３＋ 的半萃取ｐ Ｈ 值分别为４．１２,３．６９,３．５４,３．５０,３．４２,合成了 Ｈ Ｐ Ｍ Ｂ Ｐ和 Ｈ Ａ Ｐ对 Ｌａ３＋ 的协同萃取配位化合物 Ｌａ２（ Ｐ Ｍ Ｂ Ｐ）６·（ Ｈ Ａ Ｐ）３。     

复合增聚型铁铝无机高分子絮凝剂PAFCS的红外光谱研究

利用煤矸石及硫铁矿渣制备出了一种新型无机高分子絮凝剂聚硫酸氯化铁铝（ＰＡＦＣＳ），研究了ＰＡＦＣＳ的红外（ＩＲ）光谱结构特征．ＩＲ谱分析表明ＰＡＦＣＳ是Ｆｅ（Ⅲ）十Ａｌ（Ⅲ）与羟基（－ＯＨ）以双羟桥为主结构连接的较复杂的高聚物．其ＩＲ图谱峰形与α－Ｆｅ２Ｏ３，α－ＦｅＯＯＨ及Ｆｅ（ＯＨ）３等明显不同．比较了ＰＡＦＣＳ，ＰＡＣ，ＰＦＳ，ＰＡＣＳ的光谱特征，表明ＰＡＦＣＳ与已知文献报道的絮凝剂ＰＡＣ，ＰＦＳ，ＰＡＣＳ有类似性，即由３１００～３６００ｃｍ（－１）处的ＯＨ伸缩振动及１６００～１６５０ｃｍ（－１）Ｈ－Ｏ－Ｈ弯曲振动的畸变，表明有结构羟基存在；在１１００ｃｍ（－１）附近Ｍ－ＯＨ－Ｍ伸缩振动峰为中等强度峰，证明有铁羟基或铝羟基以及聚合态存在．     

环戊烯酮甲酸乙酯质谱重排失醇反应的理论研究

用ＵＨＦＡＭ１ 方法研究了１羧基３氧代５甲酸乙酯环戊烯正离子裂解反应的反应过程,证实该反应物可经过一个Ｈ 重排的五元环过渡态产生．［Ｍ—ＲＯＨ］＋ ·失醇反应的能量位垒仅有１２．００ｋＪ／ｍｏｌ,故失醇反应容易进行．     

正负离子表面活性剂混合体系中季铵盐的测定

使用四苯硼化钠重量法，测定了由Ｃ１２Ｈ２５（ＣＨ３）３ＮＢｒ和Ｃ１１Ｈ２３ＣＯＯＮａ组成的正负离子表面活性剂混合体系的季铵盐，阐述了该方法的原理及操作研究了准确测定的条件。     

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.     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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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