Mn(OH)2空气氧化反应研究

研究了在碱条件下,用ＭｎＣｌ２,ＭｎＳＯ４,Ｍｎ（ＮＯ３）２溶液生成的Ｍｎ（ＯＨ）２的空气氧化反应。Ｘ－射线衍射测定结果表明,氧化产物为Ｍｎ３Ｏ４。用电势－ｐＨ图对反应结果做了分析,测定并分析了Ｍｎ（ＯＨ）２空气氧化过程中ｐＨ值随时间的变化特征。     

层状K－Ni－Ti金属氧化物的制备及性质研究

本文以ＫＮＯ３，Ｎｉ（ＮＯ３）２，ＴｉＯ２为原料，通过固相反应，制备出高结晶度Ｋ－Ｎｉ－Ｔｉ层状金属氧化物（简称“ＬＭＯ”），并详细考察了制备条件，筛选出最佳合成条件。经ＸＲＤ，ＳＥＭ，ＴＧ－ＤＴＡ及ＢＥＴ表征，初步探讨了Ｋ－Ｎｉ－ＴｉＬＭＯ的基本性能，说明该ＬＭＯ具有较高的热稳定性。同时，ＨＡＣ，ＮＨ４Ｃｌ，正己铵的引入，使ＬＭＯ的网面间距由０．７８ｕｍ分别增加到０．８６ｎｍ，０．８８ｎｍ和２．３３ｎｍ．     

2，3，7－三取代双环吡唑啉的合成

研究了双环吡唑啉的形成及它们的酰化和磺酰化反应，合成了１１个７－取代苯亚甲基－２－酰基－３－取代苯基－３，３ａ，４，５，６，７－六氢－２Ｈ－吲唑及其苯并三唑乙酰基双环吡唑啉；讨论了部分化合物的波谱特征。化合物经ＩＲ，１ＨＮＭＲ和元素分析给以确证。     

ΘO—ΟⅡC—CH2Cl脱Cl^Θ反应的量子化学研究

用ＭＮＤＯ方法研究了ΘΟ－ΟⅡＣ－ＣＨ２Ｃｌ脱Ｃｌ＾Θ的反应途径和过渡态，论证了Ｏ作为临基参预反应的可行性和优越性。     

在二甲亚砜溶剂中氯化钼氧卟啉和超氧自由基反应动力学研究Ⅱ反应网络

本文研究了Ｍｏ￣ⅤＯ（ＴＰＰ）Ｃｌ与Ｏ＿２的反应机理。结果表明，在１：１体积比ＣＨ＿２Ｃｌ＿２－ＤＭＳＯ溶剂中，在１８－ｃｒｏｗｎ－６存在下，配合物Ｍｏ￣ⅤＯ（ＴＰＰ）Ｃｌ被Ｏ￣－＿２还原的反应通过一系列中间物，最后生成Ｍｏ￣ⅣＯ（ＴＰＰ）（１８－ｃｒｏｗｎ－６），本文给出了详细的反应动力学网络。     

ClONO2与氯原子反应及其自身微波放电的HeI紫外光电子能…

本文进行了ＣｌＯＮＯ２分子与瞬变种Ｃｌ原子反应的ＵＰＳ实验测试，指认其最终产物为ＣｌＯ自由基，ＮＯ２和Ｃｌ２。分析其反应历程为：Ｃｌ＋ＣｌＯＮＯ２－－－Ｃｌ２＋ＮＯ３（１）Ｃｌ＋ＮＯ３－－－ＣｌＯ＋ＮＯ２（２）ＣｌＯＮＯ２与Ｃｌ原子反应能够将含不活沲Ｃｌ的ＣｌＯＮＯ２转化为活泼的ＣｌＯ２，Ｃｌ２从而重参与Ｏ３破坏的循环。     

2,3,7—三取代双环吡唑啉的合成

研究了双环吡唑啉的形成及它们的酰化和磺酰化反应，合成了１１个７－取代苯亚甲基－２－酰基－３－取代苯基－３，３ａ，４，５，６，７－六氢－２Ｈ－吲唑及其苯并三唑乙酰基双环吡唑啉，讨论了部分化合物的波谱特征，化合物经ＩＲ，＾１ＨＮＭＲ和元素分析给以确证。     

N—Mannich碱的制备及其与芳香酮的交换反应

用琥珀酰亚胺、芳香醛和芳香胺在乙醇溶液中反应，制取了１０个Ｎ－Ｍａｎｎｉｃｈ碱，其中７个为未见文献报导的化合物，这类Ｎ－Ｍａｎｎｉｃｈ碱在重结晶加热时易发生分解，用Ｉ与芳香酮在ＥｔＯＨ－Ｈｃｌ溶液中进行交换反应时，得到了非预期的产物α，β－不饱和酮及其与ＨＣｌ的加成产物，反应显著经过了交换－消除－加成的过程。     

莰烯甲酰化反应及其立体化学的再研究

用ＤＭＦ－ＳＯＣｌ２和ＤＭＦ－ＰＯＣｌ３均能使东城区莰烯甲酰化，所得ω－甲酰基莰烯中均以Ｅ型异构体为主，随着甲酰化反应温度降低，Ｚ型ω－甲酰基莰烯的得率有所增答     

3—（芳酰基乙基）—斯德酮的合成

了Ｒ＝Ａｒ－Ｃ＾｜｜Ｏ－ＣＨ２ＣＨ２－的３－（芳酰基乙基）－斯德酮的合成，其方法是：将芳香酮、甲醛与甘氨酸进行Ｍａｎｎｉｃｈ反应，得Ｉ：Ａｒ－ＣＯ－ＣＨ２ＣＨ２ＮＨＣＨ２ＣＯＯＨ．ＨＣｌ；Ｉ经亚硝化得Ⅱ：Ａｒ－ＣＯ－ＣＨ２ＣＨ２Ｎ（ＮＯ）ＣＨ２ＣＯＯＨ；Ⅱ用乙酸酐脱水环化，得Ⅲ，即３－（芳酰基乙基）－斯德酮。为验证Ⅲ的结论，将其进行溴化，得Ⅳ，即３－（芳酰基乙基）－４－溴－斯德酮，Ｉ的部分化合物及     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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