高锰酸钾对莰烯的氧化反应研究

利用气相色谱及色谱－质谱联用分析法研究了高锰酸钾对莰烯的氧化的 ，着重就反应介质的酸碱性，反应温度。溶剂等对反应的影响进行了探讨。认为在酸性条件下用高锰酸钾氧化莰烯可以作为一个简单易行的合成莰尼酮的方法。     

色酮及其衍生物的合成

首次合成了色酮衍生物Ｂ，Ｃ，并对其结构进行了＾１ＨＮＭＲ，ＩＲ及ＭＰ等结构表征，研究了不同反应条件下制备反应中间体羟基苯乙酮的方法，并对反应产物的区域选择性给予了合理的解释，并且发现在用Ｖｉｌｓｍｅｉｅｒ反应来制备色酮Ａ时，要用ＰＯＣｌ３来代替四聚焦磷酸，且反应产率随着反应物的摩尔比变化而变化。     

利用1,2-茚满二酮和相关的化合物显现纸张上潜在的指纹

本文简要介绍了1，2—茚满二酮的性质，着重阐述了利用1，2—茚满二酮及相关化合物显现纸张上潜在指纹的实验环境和实验结果，并对实验结果进行了分析讨论。     

藿香中广藿香酮的分离及鉴定

利用有机溶剂甲醇从植物藿香的茎、叶中提取广藿香挥发油，经柱层析分离、纯化再利用碱性溶液萃取后。经TLC检测、紫外光谱分析、红外光谱分析，结果与有关文献报道的广藿香酮(Dhelwangind)的各种特性基本一致．     

真菌聚酮合酶分类进展及其应用

概述了真菌聚酮合酶几种有代表性的新分类,这些分类对于进一步认识、改造和利用真菌聚酮合酶以及开发真菌聚酮化合物资源等方面具有重要意义。     

3—芳酰基乙基斯德酮的还原反应

利用硼氢化钠在甲醇中还原３－芳酰基乙基斯德酮，共得到７个示见文献报导的３（３－芳基－３－羟基丙基）斯德酮，它们均经过红外，元素分析等数据证实。     

3—取代—2—酰亚胺—4—噻唑烷酮及其5—乙酸化合物的合成

通过N-烃基-N′-酰基硫脲和卤代乙酸(或卤代乙酸酯)反应,合成了一些新的3-取代-2-酰亚胺-4-噻唑烷酮类化合物,并对反应机理作了探讨.利用N-烃基-N′-酰基硫脲与顺丁烯二酸酐反应,得到3-取代-2-酰亚胺-4-噻唑烷酮-5-乙酸化合物.     

α－紫罗兰酮合成新工艺研究

对α－紫罗兰酮合成的环化剂和溶剂进行了筛选．对合成的工艺条件（环化剂与溶剂的用量、反应时间、反应温度）进行了优化，在优化工艺条件下，紫罗兰酮的得率可达８０％以上，α－紫罗兰酮的相对含量为８０％左右．     

3,5—二溴水杨基荧光酮离解常数的测定

本文利用光度法测定了３，５－－二溴水杨基荧光酮的五级离解常数分别为：ＰＫａ１＝１．９３，ＰＫａ２＝３．９８，ＰＫａ３＝５．５８，ＰＫａ４＝９．９７；并明确了该显色剂在不同酸度下所对对应主要存在形式。     

山苍子油合成假性紫罗兰酮的研究

利用山苍予油不经分离直接与丙酮进行缩合反应来制备假紫罗兰酮，研究了缩合剂．反应温度，反应时同，原料配比等因素对反应的影响情况．找出了较佳的反应条件．当用液体NaOH作缩合剂时，收率可达75。8％；当用负载干活性Al2O3上的固体NaOH作缩合剂时．收率可达86．3％。     

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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