2,5——二(2′—苯氧乙酸乙酯)—1,3,4—噻二唑的合成研究

本文报道了２，５—二（２′—苯氧乙酸乙酯）—１，３，４—噻二唑的合成，使用相转移催化剂ＴＢＡＢ以及无机混合碱ＫＯＨ—Ｋ２ＣＯ３，可使产率达６４．５％。     

Cr_2O_3对PbO—Bi_2O_3—B_2O_3玻璃颜色及析晶性能的影响

本文讨论了ＰｂＯ—Ｂｉ２Ｏ３—Ｂ２Ｏ３玻璃中引入少量Ｃｒ２Ｏ３对玻璃的颜色及析晶性能的影响。在ＰｂＯ—Ｂｉ２Ｏ３—Ｂ２Ｏ３玻璃的配合料引入０．０１—２（ｗｔ％）的Ｃｒ２Ｏ３随着Ｃｒ２Ｏ３含量的变化，玻璃颜色从橙黄、橙红到深红变化，直至析晶、失透。当Ｃｒ２Ｏ３引入量在０．２５～０．５（ｗｔ％）时，适当控制热处理条件，可得到含有粗大晶体的红色玻璃，ＥＤＳ测试表明，析出矿物的化学组成为Ａｌ和Ｋ，其原子比为１：１。     

铈和钴九—钨—三一钒杂多酸盐合成和性质

报道了Ｋ９（Ｖ３ＣｏＷ９Ｏ４０）１４Ｈ２Ｏ和Ｋ１５［Ｃｅ（Ｖ３Ｗ９Ｏ３９）２］１６Ｈ２Ｏ的合成，并利用ＩＲ，ＸＲＤ及ＴＧ—ＤＴＡ等方法对合成化合物性质进行研究，结果表明，新合成的化合物分子保持了母体酸的Ｋｅｇｇｉｎ结构骨架，两种产物晶体结构也相似．从热谱分析得知：化合物的热能过程分为两个阶段，第一阶段为失去结晶水，第二阶段为热分解，热分解温度Ｋ９（Ｖ３ＣｏＷ９Ｏ４０）１４Ｈ２Ｏ是３９０～４３０℃，Ｋ１５［Ｃｅ（Ｖ３Ｗ９Ｏ３９）２］１６Ｈ２Ｏ是３９５～４２５℃区间     

2,5—二（2‘—苯氧乙酸乙酯）—1,3,4—噻二唑的合成研究

本文报道了２，５－二（２‘－苯氧乙酸乙酯）－１，３，４－噻二唑的合成，使用相转移催化剂ＴＢＡＢ以及无机混合碱ＫＯＨ－Ｋ２ＣＯ，可使产率达６４．５％。     

五台型煤焦CO2催化气化的补偿效应

五台型煤焦用Ｎａ２ＣＯ３、Ｋ２ＣＯ３作催化剂在０．２ＭＰａ和１１２３～１２３３Ｋ温度下进行ＣＯ２气化试验，发现上述两催化剂量分别在９～２５Ｗｔ％、５～２０Ｗｔ％范围内均能明显提高气化速率，且Ｋ２ＣＯ３的催化活性高于Ｎａ２ＣＯ３。催化剂用量对动力学参数的影响说明，该催化气化反应体系存在补偿效应，其等动力学温度分别为１５６２Ｋ（Ｎａ２ＣＯ３）和１７３９Ｋ（Ｋ２ＣＯ３）．     

固体催化剂催化合成假紫罗兰酮的研究

在＋γ－Ａｌ２Ｏ３上负载ＫＦ或ＫＦ和ＮａＯＨ的混合物制备的固体催化剂ＫＦ／γ－Ａｌ２Ｏ３和ＫＦ－ＮａＯＨ／２－Ａｌ２Ｏ３，和于催化柠檬醛与丙酮缩合生成假紫罗兰酮的反应，显示出良好的催化活性，使Ⅱ的最高得率分别达８８．７％和９０．５％。     

2—苯基—3H—吲哚—3—酮的合成及其与1，3—二羰基化合物的亲核加成反应

由２—苯基吲跺（２）经亚硝化、还原、氧化及水解合成了２—苯基—３Ｈ—吲哚—３—酮（１）．１与１，３—二羰基化合物（６）的酸催化亲核加成反应给出高产率的２，２—二取代一１，２—二氢—３Ｈ—吲哚—３—酮（７）．     

在10质量%的乙醇—水混合溶剂中碳酸二级解离热力学研究

在１０质量％的乙醇－水混合物中，在２７８．１５－３１８．１５Ｋ温度范围内，利用电池：Ｐ和０１．３２５ｋＰａ）｜Ｎａ２ＣＯ３（ｍ１），ＮａＨＣＯ３（ｍ２），ＮａＣｌ（ｍ３），１０质量％乙醇－水｜ＡｇＣｌ－Ａｇ的准确电动热数据，确定了在１０％的乙醇－水混合物中碳酸二级解离九Ｋ２。     

1—苯基—3—甲基—4—（α—呋喃甲酰基）—5—吡唑酮与中性萃取剂协同萃取钇（Ⅲ）的研究

本文研究了１－苯基－３－甲基－４－（α－呋喃甲酰基）－５－吡唑酮（ＨＡ）单独萃取Ｙ（Ⅲ）及其与二苯亚砜（ＤＰＳＯ），磷酸三丁酯（ＴＢＰ）或三辛基氧膦（ＴＯＰＯ）协同萃取Ｙ（Ⅲ）的行为。确定了萃合物的组成分别为ＹＡ＿３，ＹＡ＿３·ＤＰＳＯ，ＹＡ＿３·ＴＢＰ和ＹＡ＿２（ＮＯ＿３）·２ＴＯＰＯ．算得萃取平衡常数分别为：ｌｏｇＫ＿（Ａ（ＨＡ））＝－６．８６，１ｏｇＫ＿（ＡＢ（ＨＡ＋ＤＰＳＯ））＝－３．８９，ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＢＰ））＝－２．５３和ｌｏｇＫ＿（ＡＢ（ＨＡ＋ＴＯＰＯ））＝５．１３．     

钌（Ⅲ）—KIO4（或KBrO3）—3,5—Br2—PADAP体系催化光度法测…

首次报道了硫酸介质中微量钌（Ⅲ）对ＫＩＯ４（或ＫＢｒＯ３）氧化２－（３，５－二溴－２－吡啶）－偶氮－５－二乙氨基苯酚（３，５－Ｂｒ２－ＰＡＤＡＰ）褪色具有显著的催化使用，并以此反应为指示反应建立了测定微量钌的催化光度法，在Ｒｕ（Ⅲ）－ＫＩＯ４－３，５－Ｂｒ２－ＰＡＤＡＰ体系中，钌（Ⅲ）含量在０．０８０～０．３００μｇ／１０．０ｍｌ范围内符合比耳定律，在Ｒｕ（Ⅲ）－ＫＢｒＯ３－３，５－Ｂｒ２－ＰＡＤ     

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