星际H2O脉泽的观测与研究

从１９９２年９月起，对近８２个外流源或电离氢区，用紫金山天文台青海站的１３．７ｍ望远镜进行了水脉泽观测。有三个源首次测得了弱Ｈ２Ｏ脉泽辐射；对已知源的观测结果表明星际水脉泽的时变化比较普遍。流量变化２０％以上的源达７５％，在高质量外流源中水脉泽深测率比低质量外流源中的高。本文还讨论了脉泽产生率与ＣＯ谱线宽度及成协源红外辐射的相关性。     

星际OH及其脉泽的一种新的发生机制

针对星际ＯＨ自由基及ＯＨ脉泽起源的多种解释各自存在的困境,抓住ＯＨ的生成环境特征,从星形成区紫外光子与Ｈ２Ｏ分子的相互作用出发,对ＯＨ自由基的产生与ＯＨ脉泽的激发机制提出一种新解释。这种新解释克服了过去提出的辐射机制的困难,并且能满足各实际天文条件,因此是一种有前途的机制。     

CO2加H2合成甲醇反应中CuO／ZnAl2O4催化剂性能的研究

研究了制备条件对ＣＯ２加Ｈ２合成ＣＨ３ＯＨ反应中ＣｕＯ／ＺｎＡｌ２Ｏ４催化剂的性能及ＺｎＡｌ２Ｏ４尖晶石形成的影响。采用ＸＲＤ、ＢＥＴ、ＴＰＤ和ＦＴ－ＩＲ等测试技术，对催化剂晶相结构和表面物种进行了深入分析。结果表明，沉淀方法对催化活性具有重要影响；ＮａＣＯ３沉淀剂最有利于ＺｎＡｌ２Ｏ４尖晶石的形成；Ｚｎ／Ａｌ摩尔配比为０．２３／０．３８时，尖晶石形成最为完整，活性最好。经ＴＰＤ和ＦＴ－ＩＲ测试，     

水在有机溶剂中聚合行为的IR研究

应用ＩＲ光谱差减技术，研究了水在 ＣＣ１４； ＨＣＣ１３， ＴＢＰ和 １， ４－二氧六环中的聚合形态。在 Ｈ２Ｏ－ＣＣ１４， Ｈ２Ｏ－ＨＣＣ１３体系中，通过差减，观察到聚合水的４个吸收峰，指定为开式二聚水的 ＩＲ吸收。在 Ｈ２Ｏ－ＴＢＰ和 Ｈ２Ｏ－二氧六环体系中，通过聚合水的吸收峰面积与单聚水的吸收峰面积的关联，认为存在二聚和更高聚合形式的水。     

二苯乙二酮缩双苯胺锰的合成及用于CO2催化转化研究

合成了二苯乙二酮缩双苯胺锰的配合物，研究了其对ＣＯ２的固定及催化ＣＯ２同有机底物反应。反应产物经ＩＲ，＾１Ｈ－＾１３Ｃ－ＮＭＲ、ＮＭＲ、元素分析等测定，结果表明：二苯乙二酮缩双苯胺锰是富电子配合物，可在温和条件下固定和催化转化ＣＯ２为有机酸。     

在非极性溶剂中杂多阴离子—CO络合物的电子光谱

合成了五种取代型杂多化合物：「ＳｉＷ１１Ｏ３９Ｃｏ（Ｈ２Ｏ）」＾６－，「ＧｅＷ１１Ｏ３９Ｃｏ（Ｈ２Ｏ）」＾６－，「ＰＷ１１Ｏ３９Ｃｏ（Ｈ２Ｏ）」＾５－，「Ｐ２Ｗ１７Ｏ６１Ｃｏ（Ｈ２Ｏ）」＾８－，「ＰｗＯ１８Ｏ６８Ｃｏ４（Ｈ２Ｏ）２」＾１０－，通过等离子体、ＩＲ、ＵＶ、极谱、热谱等测试手段对产物进行了表征、并首次报道它们在非极性溶剂中与ＣＯ小分子的作用，实验结果表明，取代型杂多化合物与ＣＯ形成了ＨＰ     

柠檬酸钛（Ⅳ）化合物的合成和热性质研究

四氯化钛与柠檬酸反应，制得新的固态化合物Ｔｉ２Ｏ２（ＯＨ）２（Ｃ６Ｈ５Ｏ７）·３Ｈ２Ｏ．通过元素分析和容量滴定法确定了化合物的组成；用Ｘ射线粉末衍射，ＩＲ等对其结构进行了表征；用ＴＧ和ＤＴＡ研究了化合物在空气氛下的热分解特性，计算机求解化合物热分解过程的反应级数ｎ，活化能Ｅａ，频率因子Ａ，焓变ΔｒＨ和熵变ΔｒＳ．     

H2O＋H→OH＋H2反应的理论研究

对Ｈ２Ｏ＋Ｈ→ＯＨ＋Ｈ２反应，用从头算方法（ＵＭＰ４／６－３１Ｇ）作了ＩＲＣ解析，计算活化能与实验值相符，在沿ＩＲＣ动态学分析的基础上，用传统过渡态理论，变分过渡态理论及相应隧值效应校正计算反应速率常数，获得了与实验值一致的结果。     

钨,钼羧酸合过氧配合物的合成及性质研究

引进能和钨酸钼形成稳定的五元环的羧酸类配体，制得了十种新的稳定的钨，钼羧酸赤氧配合物：（ＮＨ４）２「ＭＯ（Ｏ２）２（Ｃ２Ｏ４）」（Ｍ＝Ｗ或Ｍｏ）；（ＮＨ４）「ＭＯ９Ｏ２）２Ｌ」．２Ｈ２Ｏ和（ＮＨ４）４「Ｍ２Ｏ２（Ｏ２）４（Ｃ４Ｈ２Ｏ６）」．４Ｈ２Ｏ。测定了这些氧配合物固体的Ｒａｍａｎ和ＩＲ光谱以及水溶液的Ｒａｍａｎ光谱，并对配位结构进行了探讨，研究了这些过氧配合物的热稳定性。     

氯化锌与l—苯丙氨酸的配合行为

用半微量相平衡法研究了ＺｎＣｌ２－Ｐｈｅ－Ｈ２Ｏ三元体系在２５℃及全浓度范围内的溶度性质，结果表明，该体系中形成两种化合物：Ｚｎ（Ｐｈｅ）Ｃｌ２．１／２Ｈ２Ｏ和Ｚｎ（Ｐｈｅ）２Ｃｌ２．Ｈ２Ｏ，它们均属水中固液异成分溶解化合物。在相平衡结果指下，在水中制备了两种化合物，通过化学分析、元素分析、ＸＲＤ、ＩＲ和ＸＰＳ对它们进行了表征。     

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