同多钼酸修饰电极的制备及电催化性能

通过高电位过氧化活化玻碳电极的方法制得了同多钼酸修饰电极，结果表明该修饰电极保持了同多钼酸的电化学活性，并且有良好的稳定性。所制得的修饰电极对酸性水溶液中的地过氧化氢，氯酸钾，亚硝酸钾具有良好的电化学催化活性，催化过程的ＥＣ平行催化机理。     

丁二酮肟碳糊化学修饰电极直接电位法测定微量镍的研究

研究了一种以丁二酮肟（Ｃ４Ｈ８Ｎ２Ｏ２，ＤＭＧ）为修饰剂的碳糊化学修饰电极（ＣＭＥ）。该电极在ｐＨ＝８．８的ＮＨ３－ＮＨ４Ｃｌ缓冲溶液中，对Ｎｉ２＋浓度的负对数有线性电位响应。线性范围是５．０×１０－７～１．０×１０－３ｍｏｌ／Ｌ。电极修饰简单、性能稳定，每修饰一次可稳定测试１０个标准系列。对钢铁试样中的微量Ｎｉ进行了测定，效果良好     

2：18—硫钼杂多阴离子修饰电极电化学和电催化研究

以玻碳（ＧＣ）电极为基体制备２：１８－硫钼杂多阴离子薄膜修饰电极（简称Ｓ２Ｍｏ１８修饰电极）并探讨了其电化学行为和电催化性能,为杂多酸催化体系在电化学特别是电催化方面的研究和应用提供新的方法。     

TMHPP.FeCl修饰玻碳电极电催化氧化测定L—抗坏血酸

首次将氯化－５，１０，１５，２０－四－（３－甲氧基－４－羟基苯基）卟啉铁（ＴＭＨＰＰ．ＦｅＣｌ）修饰在玻碳电极表面，制成ＴＭＨＰＰ．ＦｅＣｌ修饰电极。该电极稳定性好且灵敏度高，对Ｌ－抗坏血酸在较宽的浓度范围内有良好的电催化氧化作用。     

2∶18-硫钼杂多阴离子修饰电极电化学和电催化研究

以玻碳（ＧＣ）电极为基体制备２∶１８－硫钼杂多阴离子薄膜修饰电极（简称Ｓ２Ｍｏ１８修饰电极），并探讨了其电化学行为和电催化性能为杂多酸催化体系在电化学特别是电催化方面的研究和应用提供新的方法     

广谱型C60修饰电极电位传感器的研究

吸附型Ｃ６０修饰玻碳电极可作为一种广谱响应的电位传感器，对十余种无机及有机季铵盐阳离子，其电位－浓度对数值呈一定的线性关系，该电极制备方便、响应速度快，稳定性好。本文还从电极表面Ｃ６０晶型结构出发，对电极的响应机理进行了初步探讨。     

甲醇在铂微粒修饰的玻碳电极上的电催化氧化

利用循环伏安法等电化学方法研究了甲醇在铂微粒修饰的玻碳电极上的电催化氧化，结果表明，铂微粒修饰玻碳电极(GC—Pt)对甲醇电化学氧化呈现较高的催化活性，活化后的玻碳电极再修饰铂微粒表现更高的催化活性，其催化活性的大小与铂载量有关，同时测定了甲醇电催化氧化反应的动力学参数。     

C60修饰电极在含NMF的水溶液中电化学性质研究

本文研究了在ＮＭＦ－（Ｃ２Ｈ５）４ＮＯＨ水溶液体系中Ｃ６０修饰电极的电化学性质。以循环伏安法得到三对Ｃ６０修饰电极的单电子氧化－还原峰，电极反应为半可逆反应，讨论了底液的组份、电位扫描范围与电极性能的关系，对Ｃ６０修饰电极的电化学催化特性也做了初步的探讨。     

铁氰酸钴膜修饰微电极的研究及其应用

用电化学法在玻碳基体上制备出性能稳定的铁氰酸钴膜修饰微电极（ＣＨＣＦ／ＧＣ），该电极可在－１．０Ｖ－１．０Ｖ（ｖｓＳＣＥ）之间进行连续多次的电位扫描。表征了该电极的电化学多种行为，研究了影响ＣＨＣＦ膜电极性能的多种因素和该电极对抗坏血酸（ＡＡ）测定的催化作用。     

聚3—甲基噻吩和聚烷醚膜电极的研制与应用

以五员杂环或冠醚及其衍生物为聚合单体，以玻碳或铂为基体，用电沉积法制备了导电聚合物膜修饰电极。该修饰电极与铂电极，玻碳电极相比，具有灵敏度高，抗污染能力强，稳定性好的特点，并具有一定的广泛适用性，可用于各类电化学分析法，如伏安法，电位法，电导法。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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