三苯基锡(IV)烯基或炔基膦酸衍生物的合成与表征

通过三苯基氯化锡和烯基或炔基膦酸钠反应,合成了８种新的三苯基锡（ＩＶ）烯基或炔基膦酸衍生物ｈ３ＳｎＯＰ（Ｏ）（ＯＨ）Ｒ（Ｒ＝ＣＨ＝ＣＣｌＰｈ,Ｃ≡ＣＣ４Ｈ９－ｎ,Ｃ≡ＣＣ５Ｈ１１－ｎ,Ｃ≡ＣＣ６Ｈ１３－ｎ,Ｃ≡＝ＣＰｈ,Ｃ≡ＣＣＨＯＣＨ,Ｃ≡ＣＣＨＯＣＨ）。利用元素分析、ＩＲ、＾１ＨＮＭＲ及ＭＳ等手段表征了这些化合物的结构,结果表明这些化合物为五配位锡原子的聚合结构。     

健康人C3/Ig双特异性免疫复合物与体液免疫的相关性

采用直线相关分析法,较系统地研究了健康人 Ｃ３／ Ｉｇ 双特异性循环免疫复合物（ Ｃ３／ Ｉｇ Ｍ  Ｔ Ｃ Ｉ Ｃ、 Ｃ３／ Ｉｇ Ｇ Ｔ Ｃ Ｉ Ｃ 和 Ｃ３／ Ｉｇ Ａ Ｔ Ｃ Ｉ Ｃ）与 Ｉｇ Ｍ 、 Ｉｇ Ｇ、 Ｉｇ Ａ 和 Ｃ３ 的相关性．结果发现, Ｃ３／ Ｉｇ Ｍ  Ｔ Ｃ Ｉ Ｃ 和 Ｃ３／ Ｉｇ Ｇ Ｔ Ｃ Ｉ Ｃ 含量主要取决于血清总 Ｉｇ Ｍ 和 Ｉｇ Ｇ 量; Ｃ３／ Ｉｇ Ｇ Ｔ Ｃ Ｉ Ｃ 与复合的 Ｉｇ Ｍ 、复合的 Ｉｇ Ｇ、总的 Ｃ３ 呈正相关,而与复合的 Ｃ３ 呈负相关．这些结果提示, Ｉｇ Ｇ 在健康人体液免疫中的重要作用．同时说明,健康人机体免疫反应是复杂多样的,深入研究 Ｃ３／ Ｉｇ Ｔ Ｃ Ｉ Ｃ 与体液免疫的相关性及其形成机理,将为揭示健康人的体液免疫机制提供重要参考．     

簇合物Co_6(μ_6-P)(μ-SCH_2CH_2CH_2S)(μ-PSCH_2CH_2CH_2S)(CO)_(12)和Co_3(μ-PSCH_2CH_2CH_2S)_3(CO)6的合成与表征

用Ｃｏ２（ＣＯ）８与含硫含磷杂环配体ＣｌＰＳＣＨ２ＣＨ２ＣＨ２Ｓ↓反应，合成得到含有半填隙μ６－Ｐ原子的新的六核簇Ｃｏ６（μ６－Ｐ）（μ－ＳＣＨ２ＣＨ２ＣＨ２Ｓ）（μ－ＰＳＣＨ２ＣＨ２ＣＨ２Ｓ↓）（ＣＯ）１２１，同时，得到三核簇Ｃｏ３（μ－ＰＳＣＨ２ＣＨ２ＣＨ２Ｓ↓）３（ＣＯ）６２，通过元素分析和波谱表征确定了二个簇合物的分子结构．     

混装生产物流动态调整数学模型

研究了热－热混装（ＣＣ－ＤＨＣＲ与ＣＣ－ＨＣＲ混合）和冷一热混装（ＣＣ－ＤＨＣＲ与ＣＣ－ＣＣＲ混合）的生产物流动态调整问题，以库存缓冲特征增量模型为基础，建立了不同生产情况下的混装生产物流动态调整模型。     

黄土地层化学成分迁移深度与含量研究

研究了黄土地层化学成分的迁移深度与含量．根据黄土高原第四纪土壤的广泛调查,发现了 Ｃａ Ｃ Ｏ３ 等化学成分的多种特殊淀积现象,结合化学成分含量分析,确立了研究古环境的迁移深度指标;并将黄土地层 Ｃａ Ｃ Ｏ３ 分为碎屑 Ｃａ Ｃ Ｏ３,淀积 Ｃａ Ｃ Ｏ３,同期淋溶残余 Ｃａ Ｃ Ｏ３,后期淋溶残余 Ｃａ Ｃ Ｏ３ 和表聚 Ｃａ Ｃ Ｏ３ ５ 种,提出了用 Ｃａ Ｃ Ｏ３ 含量恢复环境的新标准     

黄土地层化学成分迁移深度与含量研究

研究了黄土地愉发的迁移深与含量,根据黄土庙的第四纪土壤的广泛调查,发现了ＣａＣＯ３等化学成分的多种淀积现象,结合化学成分含量分析,确立了研究古环境的迁移深度指标;并将黄土地层ＣａＣＯ３分为碎屑ＣａＣＯ３,淀积ＣａＣＯ３,同期淋溶残余ＣａＣＯ３,后期淋溶残余ＣａＣＯ３和表聚ＣａＣＯ３５种,提出了用ＣａＣＯ３含量恢复环境的新标准。     

混装生产物流数学模型研究

研究了热一热混装（ＣＣ－ＤＨＣＲ与ＣＣ－ＨＣＲ混合）和冷一热混装（ＣＣ－ＤＨＣＲ与ＣＣ－ＣＣＲ混合）生产物流问题，以库存缓冲特征值模型为基础，建立了不同生产情况下的混装生产物流数学模型。     

偶氮,亚胺,酯类液晶的合成及中心桥键对介晶性的影响研究

报道了偶氮化合物ｐ－Ｈ２１Ｃ１０Ｏ－Ｃ６Ｈ４－Ｎ→‖Ｎ－Ｃ６Ｈ４－ＣＯＯＣｈ，亚胺化合物ｐ－Ｈ２１Ｃ１０Ｏ－Ｃ６Ｈ４－ＣＨ→‖Ｎ－Ｃ６Ｈ４－ＣＯＯＣｈ，酯类化合物ｐ－Ｈ２１Ｃ１０Ｏ－Ｃ６Ｈ４－ＣＯＯＣｈ，（Ｃｈ ａｓ ｔｈｅ ａｂｂｒｅｖｉａｔｉｏｎ ｏｆ ｃｈｏｌｅｓｔｅｒｙｌ ｇｒｏｕｐ）的合成，结构鉴定，以及ＤＳＣ和偏光显微镜对其介晶性研究的结果，并对中心桥键对介晶性的影响进行了讨论。     

固态有机反应中的Pinacol重排

在基础有机化学教学中，讨论到多元醇的化学性质时都会介绍ＰｉｎａｃｏｌＲｅａｒｒａｎｇｅｍｅｎｔ（频哪醇重排）反应：［１］ＣＣＨ３ＣＨ３ＯＨＣＣＨ３ＯＨＣＨ３Ｈ＋ＣＣＨ３ＣＨ３ＣＨ３ＣＯＣＨ３从反应物Ｐｉｎａｃｏｌ到产物Ｐｉｎａｃｏｌｏｎｅ（频哪酮）分子骨架发生了变化，故属重排反应，其反应机理为：［２］ＣＲ２Ｒ１ＯＨＣＲ３ＯＨＲ４＋Ｈ＋ＣＲ２Ｒ１ＯＨＣＲ３ＯＨ２Ｒ４－Ｈ２ＯＣＲ２Ｒ１ＯＨＣＲ３＋Ｒ４重排ＣＲ２＋ＯＨＣＲ１Ｒ４Ｒ３ＣＲ２ＯＨＣＲ１Ｒ４Ｒ３－Ｈ＋ＣＲ２ＯＣＲ１Ｒ４Ｒ３发生重排反应的原因…     

不锈钢焊接接头在MgCl2溶液中的应力腐蚀开裂研究

用插销法评定了０Ｃｒ１８Ｎｉ９Ｔｉ钢及其焊接接头在１４３℃、４２％ＭｇＣｌ２溶液中的应力腐蚀开裂（ＳＣＣ）敏感性，测定了接头各区抗ＳＣＣ的临界值σｉｍｐＳＣＣ，明确指出奥氏体晶粒度是热影响区（ＨＡＺ）ＳＣＣ抗国的最主要的因素，其中焊接ＨＡＺ的晶粒度与ＳＣＣ临界值σｉｍｐＳＣＣ成线性关系，为口分析表明，各区的ＳＣＣ属于穿晶型，断口形貌呈准解理特征。     

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