反胶束萃取蛋白质的研究

研究了ＡＯＴ－异辛烷反胶束溶液萃取蛋白质时，水相ｐＨ值，离子强度和蛋白质浓度，有机相表面活性浓度以及溶剂比对萃取效果的影响。     

水／NaDEHP／正庚烷微乳体系中水结构的FT—IR研究

运用傅立叶变换红外光谱（ＦＴ－ＩＲ）对水／ＮａＤＥＨＰ／正同乳体系中水的微结构进行了研究。结果表明：随着体系中加水量的增大，水分子Ｏ－Ｈ伸缩振动红外吸收峰的频率由３３８５ｃｍ＾－１向高频在移动至３４１７ｃｍ＾－１（与ＡＯＴ形成的乳体系的变化趋势相反）。进一步地３０５０ｃｍ＾－１至３７５０ｃｍ＾－１范围内的水Ｏ－Ｈ伸缩振动吸收峰进行曲线拟合，得到４个子峰，说明微乳体系中的水分子存在有４种不同的配位环     

基于非原始模型关联电解质水溶液的离子平均活度系数

本文采用非原始ＭＳＡ结果（等离子大小），结合粘性相互作用理论处理离子一离子间的缔合作用，统计缔合流体理论处理溶剂水分子的氢键缔合作用，进一步探讨对电解质水溶液的离子平均活度系数进行关联的可能性．对离子—偶极混合物，体系的直接相关函数由Ｏｒｎｓｔｅｉｎ...     

水分子与α（1→4）连接半乳糖醛酸间氢链的形成及其对构象的影响

采用量子化学ＳＣＦ ＬＣＡＯ－ＭＯ ＣＮＤＯ／２的方法，对水分子在不同位置与二聚半乳糖醛酸形成的氢键体系进行了探讨，在端位－ＯＨ上形成氢键比在－ＣＯＯＨ位形成氢键更为有利，进一步分析了水分子的氢键作用对二聚半乳糖醛酸的稳定构象，水解易于发生的可能构象的影响。     

二（2，4，4－三甲基戊基）膦酸萃取锌

研究了二（２，４，４－三甲基戊基）膦酸（ＣＹＡＮＥＸ２７２，ＨＡ）从硫酸介质中萃取锌（Ⅱ）的热力学，考察了磷酸三丁酯（ＴＢＰ）对萃取的影响。结果表明，ＣＹＡＮＥＸ２７２与锌形成ＺｎＡ２，ＺｎＡ２·ＨＡ和ＺｎＡ２·２ＨＡ三种配合物，相应萃取热焓△Ｈ°分别为－７５．５３、－５２．７１和－２９．８７ｋＪ．ｍｏｌ－１，依次相差约一个氢键的能量与反应中断裂氢键数目有关。ＴＢＰ与ＣＹＡＮＥＸ２７２萃取锌时生成协同配合物ＺｎＡ２·２ＨＡ·ＴＢＰ，系由分子缔合物２ＨＡ·ＴＢＰ与Ｚｎ（Ⅱ）直接配位产生，协同萃取反应平衡常数１５．８。同时还计算得到ＺＨＡ·ＴＢＰ的生成常数３１．７（３０３Ｋ）。     

AgNO3溶液中meso—四—（对磺基苯）卟啉的表面增强Raman光谱

本文研究了ＡｇＮＯ３溶液中ｍｅｓｏ－四－（对磺基苯）卟啉（Ｈ２ＴＳＰＰ）的表面增强Ｒａｍａｎ光谱（ＳＥＲＳ）。发现Ｈ２ＴＳＰＰ吸附于光还原的Ａｇ溶胶颗粒表面与银进行了络合反应，生成ｍｅｓｏ－四－（对磺基苯）卟啉银（Ⅱ）（Ａｇ（Ⅱ）ＴＳＰＰ）。对ＳＥＲＳ谱受波长及ＡｇＮＯ３溶液浓度的影响进行了讨论。结果显示光还原ＡｇＮＯ３溶液所形成的Ａｇ胶体，有希望成为一种制备简单而又具有实用价值的ＳＥＲＳ活性基底     

氢键作用对POM／COPA共混物结构与性能的影响

本文采用ＦＴ－ＩＲ、ＤＳＣ、ＳＥＭ、ＷＡＸＤ等手段对ＰＯＭ／ＣＯＰＡ共混物的微观结构进行分析，并且对其力学性能进行测试．研究结果表明，在ＰＯＭ／ＣＯＰＡ共混物中存在着氢键的相互作用，且氢键的相对强度随ＣＯＰＡ含量的增加而增大，氢键作用使得微晶尺寸Ｌ_（１１０）及晶胞尺寸均增大．在氢键的相对强度低于１．５的范围内，ＣＯＰＡ对ＰＯＭ具有增韧改性作用．     

不同浓度下乙醇-水溶液的缔合状态

为了研究不同浓度的乙醇-水溶液的缔合状态,采用1HNMR对其氢键缔合展开分析.发现:溶液中弱氢键C H…O随浓度变化的幅度较小,其中CH2比CH3更易形成弱氢键,也更易受浓度波动的影响;至于强氢键O H…C,乙醇分子OH比水分子更易受浓度变化的影响,溶液在乙醇摩尔分数x=0.550时出现最强的氢键缔合网络结构.根据缔合强度大小把溶液浓度范围大致分为3个区间:0x0.236时,水分子缔合结构占主要地位;0.236≤x≤0.735时,乙醇分子和水分子相互作用,形成更强、更广的氢键缔合网络结构;0.735x1.000时,乙醇分子缔合结构占据主要地位.     

对磁化水神奇特性的分析

磁化水的神奇特性就在于当缔合态水通过磁场后，缔合态水分子的氢键遭到破坏形成单个水分子，这些单个水分子具有较强的渗透性和较强的溶解能力。     

1,10—双（1‘—苯基—3’—甲基—5‘—氧代吡唑—4’—基）癸二酮…

研究了１，１０－双（１＇－基苯－３＇－甲基－５＇－氧代吡唑－４＇－基）癸二酮－［１，１０］（ＢＰＭＰＤＤ，Ｈ２Ａ）与三辛基氧膦（ＴＯＰＯ，Ｂ）或三苯基氧膦（ＴＰＰＯ，Ｂ）的氯仿溶液从硝酸介质中对镱（Ⅲ）的协同萃取行为，用等摩尔法研究了体系的协萃效应，计算了体系的酸性协萃系数和协萃系数。用斜率法测得协萃合物的组成为ＹｂＡ·ＨＡ·ＴＯＰＯ或ＹｂＡ·ＨＡ·ＴＰＰＯ，计算了相应的协萃平衡常数，还考虑了温度     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

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.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to