CdCl2处理退火CdS多晶薄膜的电学性质研究

对ＣｄＳ薄膜用不同浓度的ＣｄＣｌ２溶液处理后在不同温度下退火,发现其暗电导率σｄ和电导激活能Ｅａ随ＣｄＣｌ２溶液的浓度和退火温度的不同而不同,而且用ＣｄＣｌ２处理再退火的样品,暗电导率σｄ随温度Ｔ变化的关系（ｌｎσｄ１０００／Ｔ）为分段直线,对应于不同的Ｅａ．本文就上述结果进行了讨论,并用Ｃｌ－的扩散进行了解释．     

大气降尘中痕量金属元素铜、铅、锌、铬的形态分析

运用Ｔｅｓｓｌｅｒ形态分类法和石墨炉原子吸收分光光度法测定了土壤和大气降尘中痕量金属元素Ｃｕ、Ｐｂ、Ｚｎ、Ｃｒ不同存在形态的含量，结果表明，Ｃｕ、Ｐｂ、Ｃｒ在降尘中均有不同程度的富集．Ｃｕ、Ｐｈ、Ｚｎ、Ｃｒ在土壤和降尘中的形态分布规律有所不同．讨论了不同存在形态对人体和环境的危害．     

C—SiC薄膜抗辐照性能的研究

在室温下分别采用射频磁控溅射和离子束辅助沉积技术沉积Ｃ－ＳｉＣ薄膜，并进行了相同注量和相同能量的Ｈｅ＾＋辐照试验。分析结果表明：两种不同方式制备的Ｃ－ＳｉＣ薄膜经Ｈｅ＾＋辐照后显示了不同的形貌特征，薄膜中Ｓｉ组分的含量也有不同。我们对此进行了讨论，还进行了相应的Ｓｉ、Ｃ的化学态分析。     

C－SiC薄膜抗辐照性能的研究

在室温下分别采用射频磁控溅射和离子束辅助沉积技术沉积Ｃ－ＳｉＣ薄膜，并进行了相同注量和相同能量的Ｈｅ￣＋辐照试验。分析结果表明：两种不同方式制备的Ｃ－ＳｉＣ薄膜经Ｈｅ￣＋辐照后显示了不同的形貌特征，薄膜中Ｓｉ组分的含量也有不同。我们对此进行了讨论，还进行了相应的Ｓｌ、Ｃ的化学态分析。     

蚯蚓钙调素二级结构的研究及Ca^2＋,Tb^3＋的影响

运用ＦＴ－ＩＲ方法的分辨率增强及曲线拟合技术对水化膜中蚯蚓钙调素ＣａＭ的二级结构以及加入不同比例Ｃａ＾２＋、Ｔｂ＾３＋后ＣａＭ二级结构的变化进行了研究。结果表明，水化膜中ＣａＭ及含不同比例Ｃａ＾２＋或Ｔｂ＾３＋的蛋白复合物的α－ｈｅｌｉｘ的含量较晶体和溶液中为低，而β－ｓｈｅｅｔ和ｔｕｒｎ结构的含量相对较高。研究发现不同比例金属离子的加入，引起了ＣａＭ二级结构不同程度的变化，但各类结构在总量上观察     

含铜稀土复合氧化物的氧化活性

本文研究了不同配比电子型Ｎｄ－Ｃｅ－ＣＵ－Ｏ和空穴型Ｙ－Ｂａ－Ｃｕ－Ｏ系列样品的ＣＯ氧化活性、晶体结构、程序升温氧脱附和导电性的特征．结果表明：超导体ＹＢａ２Ｃｕ１．５Ｏ７－ｘ和半导体Ｃｅ２ＣｕＯｘ具有良好ＣＯ氧化转化率．后者在１２０℃时，ＣＯ达到完全转化．ＸＲＤ证明它为２ＣｅＯ２和ＣｕＯ混合晶相．由于导电和催化反应机制完全不同，活性高低和样品导电性能间没有发现直接关联．讨论了含Ｃｅ、Ｃｕ样品的活性中心，认为ＣｅＯ２为吸附氧和供氧中心，而Ｃｕｎ＋为ＣＯ活化和氧化反应中心，而前者可能为控制步骤．两者紧密协同，使Ｃｕ２＋的氧化还原循环更容易进行．     

碳酸盐及其酸式盐溶解度的讨论

采用热力学原理和溶解自由能数据，分析了易溶碳酸盐的溶解度大于其酸式盐式盐的溶解度以及与一般碳酸盐的情况相反的原因。Ｎａ２Ｃｏ３、ＮａＨＣＯ３等类盐溶解度影响的主要因素是由于溶解焓变不同，而影响的ＣａＣｏ３、Ｃａ（ＨＣＯ３）２等类盐溶解度的主要原因则是由于溶解熵变的不同所引起的。     

n维理想玻色气体的内能和热容量

给出了Ｔ〉Ｔｃ和Ｔ〈ＴＣ情况下不同能谱的ｎ维简交理想玻色气体的内能及热容量的普遍表达式，应用于三维极端相对论理想玻色气体时则在Ｔ－ＴＣ处热容量ＣＶ出现跃变，这与通常玻色气体的ＣＶ在ＴＣ处连续的结果不同。     

催化裂化汽油中硫醇性硫和碱性氮化物分布规律的考察

采用溶剂抽提及色谱质谱法,对催化裂化（ＦＣＣ）汽油及脱臭后ＦＣＣ汽油中硫醇性硫及碱性氮化物的分布与含量进行了考察。结果表明,不同催化裂化原料的ＦＣＣ汽油中硫醇的种类和分布大致相同,都存在大量丁硫醇。脱臭后ＦＣＣ汽油中异构的小分子硫醇和相对分子质量大的硫醇含量较多。苯硫酚的存在对硫醇的脱除和汽油的腐蚀都不利。不同催化原料的ＦＣＣ汽油中碱性氮化物种类和分布也大致相同,主要由苯胺、吡啶两种物质组成,其中苯胺占９０％以上。脱臭前后ＦＣＣ汽油中碱性氮化物种类和分布基本没有变化。在现有脱臭条件下,碱性氮化物对脱臭催化剂活性和寿命没有明显影响。     

胆甾液晶冠醚固定相的气相色谱性能研究

４‘－胆甾烯氧羰基苯并－１５－冠－５（ＣＨ－Ｂ－１５－Ｃ－５）在不同温度范围内其相态不同，在同一温度范围内因处理方式不同而物性亦相去甚远，用其作成了兼具气固色谱，普通气液色谱和冠醚液晶气液色谱多种性能的固定相。用该固定相在不同条件下，对脂肪烃，脂肪酸，羧酸乙以及多种有机混合物等进行了ＧＳＣ，ＧＬＣ和ＣＬ－ＧＬＣ分离，发现它对这些物质有较强的分离能力，均获得对称良好的色谱峰。     

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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