金属酞菁—球烯复合物光谱行为及热力学性质

利用紫外可见光谱、荧光光谱研究锌酞菁（ＺｎＰｃ）－球烯（Ｃ６０）复合物在不同溶剂体系中的光谱性质．ＵＶ－Ｖｉｓ光谱在７１０ｎｍ附近出现新的特征吸收峰,峰位置与理论计算基本符合,这表明ＺｎＰｃ和Ｃ６０形成了分子间电荷转移复合物（ＣＴＣ）．荧光光谱中激发峰的位移和荧光猝灭低谷现象进一步证实形成了ＺｎＰｃ－Ｃ６０的ＣＴＣ．通过Ｊｏｂ′ｓ光度滴定等方法表明ＺｎＰｃ与Ｃ６０以１∶１和２∶１的复合比生成ＣＴＣ．对ＺｎＰｃ－Ｃ６０在不同温度下的生成平衡常数ＫＣ及热力学性质进行了研究．     

某些金属酞菁配合物在光激发下产生单线态氧能力的研究

研究了在甲醇—吡啶体系中，一系列金属酞菁配合物在光激发下产生单线态氧的能力．结果表明，它们产生１Ｏ２能力的顺序如下：ＺｎＰｃ＞ＡｌＰｃＣｌ≥ＣｒＰｃ＞ＴＮＣｏＰｃ＞ＴＮＮｉＰｃ＞ＭｎＰｃ＞ＣｏＰｃ＞ＮｉＰｃ＞Ｍｎ（ＯＨ）Ｐｃ＞ＦｅＣｌＰｃ＞ＦｅＰｃ．并着重讨论了中心金属离子、环取代基对ＭＰｃ产生１Ｏ２能力的影响     

球烯与对叔丁基杯[8]芳烃苯醚形成超分子包合物的研究

报道合成了一种新型的对叔丁基杯［８］芳烃苯醚，其在甲苯中可与球烯（Ｃ６０、Ｃ７０）形成超分子包合物．通过红外光谱、紫外光谱对所形成的包合物进行表征，探讨了影响反应的因素，测定了Ｃ６０包合物的配合比为１∶１，而Ｃ７０包合物的配合比为２∶１，它们的反应平衡常数Ｋａｓ分别为１．８１０×１０３ｍｏｌ－１·Ｌ和３．６５７×１０２（ｍｏｌ－１·Ｌ）１／２，对包合物的构型进行了推测     

C60及C60衍生物水溶液中氧自由基的检测

采用聚乙烯吡咯烷酮介导法将Ｃ６０与Ｃ６０氮乙酰胺（Ｎ－ａｃｅｔａｍｉｄｅ １，２－ｄｉｈｙｄｒｏ－１，２－ａｚａ－ｆｕｌｌｅｒｅｎｅ「Ｃ６０」）制成水溶液，利用光泽精（Ｌｕｃｉｇｅｎｉｎ）作为氧自由基的光敏探针，在光子计数器上收集并检测溶液中产生的光子，首镒测定了光照和非光照条件下Ｃ６０及其几种衍生物水溶液中氧自由基，并研究了Ｃ６０（ＯＨ）ｎ对水溶液中氧自由基的影响。     

转CMV－CP基因的番茄对CMV的抗性表现及遗传分析

本实验表明转ＣＭＶ－ＣＰ（ＣｕｃｕｍｂｅｒＭｏｓａｉｃＶｉｒｕｓＣｏａｔＰｒｏｔｅｉｎ）基因的番茄对ＣＭＶ的侵染有很强的抗性。外源基因在转基因番茄及其后代中的分离比例为３∶１和１∶１．     

脉冲式XeCl激光辐照a－Si∶H膜诱导晶化的研究

当脉冲辐照ａ－Ｓｉ∶Ｈ膜的ＸｅＣｌ激光能量密度在２４０ｍＪ／ｃｍ￣２以上时，可引起被辐照膜发生明显的固相晶化；通过拉曼（Ｒａｍａｎ）散射谱、扫描电子显微照象（ＳＥＭ）和紫外（ＵＶ）分光光度吸收谱的实验，研究了不同辐照条件、不同膜厚及各种膜结构试样的晶化效果；还研究了使用ＣＯ＿２激光退火对被辐照膜的影响。结果表明，晶化膜的晶粒大小在０．１～１．０μｍ时，Ｒａｍａｎ位移为５１０ｃｍ￣（－１）～５１７ｃｍ￣（－１）、半峰高宽度为１０ｃｍ￣（－１）～１５ｃｍ￣（－１）；ａ－Ｓｉ∶Ｈ膜经ＸｅＣｌ激光辐照或ＣＯ＿２激光退火后，都会增强晶化膜的吸收效率。     

钯-柠檬黄-表面活性剂体系分光光度法测定钯

在ｐＨ３．５的ＨＣｌ－ＮａＡｃ缓冲溶液中,钯与柠檬黄形成１∶２的配合物．在溴代十六烷基三甲铵（ＣＴＭＡＢ）存在下,配合物的最大吸收波长为５３１ｎｍ,ε为１．９×１０４Ｌ／（ｍｏｌ·ｃｍ）．采用１ｃｍ和３ｃｍ吸收池测定时,钯含量分别在０～１μｇ／ｍＬ和０～０．６μｇ／ｍＬ范围内服从比尔定律．方法检测限为０．０６８ｍｇ／Ｌ,重现性好,选择性高,适于合成矿样及钯催化剂中钯的测定     

高效液相色谱法测定血伤宁中的乌头碱含量

用ＨＰＬＣ法测定血伤宁中乌头碱的含量．在ＯＤＳ柱上,以甲醇（Ｖ）∶水（Ｖ）∶三乙胺（Ｖ）（７０∶３０∶０．１）作流动相,流速１．０ｍＬ／ｍｉｎ,检测波长为２４０ｎｍ,平均回收率９０．６０％,变异系数１．２５％．     

镉与DBON-PF显色反应的研究及应用

研究了镉与ＤＢＯＮ－ ＰＦ 显色反应的条件－ 在ｐＨ ９ 的硼砂－ 硼酸缓冲溶液中,有ＣＴＭＡＢ存在下,镉与ＤＢＯＮ－ ＰＦ形成蓝紫色络合物,最大吸收波长为６１０ ｎｍ ,表观摩尔吸光系数为２ ．６４ ×１０５ Ｌ·ｍｏｌ－ １·ｃｍ － １ ,络合物的配合比为Ｃｄ（ Ⅱ）∶ＤＢＯＮ－ ＰＦ∶ＣＴＭＡＢ＝ １∶１∶２ ,镉量在０ ～０ ．１６ μｇ／ｍＬ 符合比耳定律－ 通过巯基棉柱富集、分离,除去大量的干扰离子,本法灵敏度高,稳定时间长,能应用于环境水样和废水中微量镉的测定－ 图１ ,表１ ,参６－     

球烯C60掺杂过渡金属酞菁配合物在GaAs电极上的光伏效应

在光电化学电池中测定球烯Ｃ６０掺杂的过渡金属酞菁（ＭＰｃ）在ＧａＡｓ电极上所形成异质结的光伏效应，研究不同介质及不同过渡金属酞菁对光伏效应的影响．结果表明：１）Ｃ６０与ＭＰｃ在特定的有机溶剂中可形成新的加合物，以ＵＶ－Ｖｉｓｉｂｌｅ光谱表征，在长波部分有新峰出现；２）Ｃ６０掺杂增强了ＭＰｃ在ＧａＡｓ电极上的光伏效应．与ＧａＡｓ相比，△Ｖ可增强２～３倍；３）不同介质电对对光伏效应有较大的影响，Ｉ３／Ｉ是较好的介质电对．     

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