共聚增韧改性聚对苯二甲酸乙二酯的结构及性能研究

以对苯二甲酸二甲酯（DMT）、乙二醇（EG）和聚氧丁撑（PTMO）为原料进行共聚合，得到无规嵌段共聚物PET／PTMO。核磁共振（^1H—NMR）分析表明PTMO按投料比以化学连接的方式接到了聚合物大分子链上；DSC的结果表明PET／PTMO的熔点随PTMO含量的增加而降低，其自熔体冷却时的结晶温度Tc在PTMO含量小于8%（摩尔比）时向高温移动，而在PTMO含量为12％（摩尔比）时则小于PET的Tc；通过POM观察到，PET／PTMO所形成的球晶尺寸明显减小。将试样注塑成样条，进行抗冲击性能的测试后，发现PET／PTMO的冲击强度远大于PET，选择添加4％～8％摩尔分数的PTMO，即能显著改善韧性。     

聚酯聚醚多嵌段共聚物表面的XPS研究

用X射线光电子能谱(XPS)研究了一系列PE(?) PTMO多嵌段共聚物——空气界面的化学组成。实验结果表明:在XPS的最大有效取样深度(<5nm)里,样品表面都富集了PTMO软段。硬段含量为24.1 Wt％的共聚物样品,软硬段产生的相分离程度最大。在同一硬段含量下,软段分子量越高,表相中PTMO的富集量越大,溶剂的溶解性越好,表相中PTMO的富集量越大,软硬段的相分离程度愈高。     

苯乙醇胺对猪激素及代谢水平的影响

试验用苯乙醇胺（Phenylethylamine.PEA)饲喂猪，观察它对机体代谢的影响，结果表明，PEA可以显著提高猪血清生长激素（GH）和甲状腺素（T4）水平，及T4／T3比值，从而使血清葡萄糖（Glc)含量明显增加，血清蛋白质含量趋于增高（总蛋白，白蛋白和球蛋白），提示：PEA在刺激生长之时，有利于蛋白质在体内沉积，并提高基础代谢水平，使体脂趋于分解，而且PEA除具有β-激动剂的共性外，其特点比同类物质的相对分子量小，代谢排出快，无残留，故具有良好的应用前景。     

有机磷对胆碱酯酶作用影响的生化分析

通过对有机磷抑制人乙酰胆碱酯酶（AchE）和丁酰胆碱酯酶（BuchE）以及猪和牛丁酰胆碱酪酶活性的测定，发现人乙酰胆碱酯酶和丁酸胆碱酯酶对有机磷较为敏感，结果表明，该方法既灵敏又稳定．     

一些过氧化酰热分解反应的CIDNP研究

用核磁共振研究过氧化癸酰，过氧化壬酰，过氧化５－甲基己酰和过氧化３－甲基丁酰分别在邻二氯苯的饱和碘溶液或四氯化碳中的热分解反应。观察到烷基自由基的笼反应产物烯烃（Ｒ－Ｈ）和扩散产物ＲＸ（Ｒ＝烷基，Ｘ＝Ｃｌ，Ｉ）的ＣＩＤＮＰ多重效应。对过氧化酰热分解反应及自由基对的形成和反应机理作了讨论。     

N—正丁基—苯甲酰—2—碘酰内亚胺促渗效果的研究

Ｎ－正丁基－苯甲酰－２－磺酰内亚胺是一种新型促渗剂，具有毒性小促渗效果好等特点。用φ＝４０％Ｎ－正丁基－苯甲酰－２－磺酰内亚胺处理小鼠皮肤可使皮肤给药的小檗碱血药浓度大幅度提高（生物利用度可提高１１５６倍）。目前国内外常用的促渗剂氮酮只能提高生物利用度３．８６倍，Ｎ－正丁基－苯甲酰－２－磺酰内亚胺的促渗效果是氮酮的２．９９倍，在进行Ｎ－正丁基－苯甲酰－２磺酰内亚胺和红细胞作用的实验时，也观察到可以     

制备微细颗粒的乳状液稳定性研究

乳状液用于微细颗粒的合成已引起人们的关注，但乳状液是一种热力学不稳定体系，对其应用产生很大的限制。以煤油为油相，P204（二-（2-乙基己基）磷酸酯）为载体，选取Span80和丁二酰亚胺类表面活性剂T155为膜相稳定剂，以溶胀率和泄漏率为衡量标准，考察了表面活性剂类型及用量、内水相浓度、载体用量等因素对用于制备微细颗粒的乳状液的稳定性的影响。丁二酰亚胺类表面活性剂与常用的Span 80相比，具有更好的耐酸碱性能。在实验范围内，表面活性剂用量的增加有利于乳状液的稳定；乳状液的溶胀率和泄漏率均随着载体浓度的增加而增大。实验确定了几种稳定性较好的可用于微细颗粒制备的乳状液。     

硬段含量对热致形状记忆聚氨酯材料记忆性能的影响

以聚己二酸乙二醇酯二醇 (PEA)为软段、4,4’ -二苯基甲烷二异氰酸酯 (MDI) 1,4 丁二醇 (BDO) 含环状结构的扩链剂DPA为硬段 ,采用一步聚合法制备了一种具有热致形状记忆功能的多嵌段聚氨酯弹性体。研究了其多次形变形状记忆恢复能力 ,并且用DSC分析不同硬段含量的热致记忆聚氨酯的热行为 ,另外用WAXD对其聚集态结构进行了观察     

不同抗寒性的杜鹃品种叶片磷脂和脂肪酸组成差异性比较分析

分析了杜鹃两个不同抗寒性的栽培品种毛白杜鹃和西洋杜鹃叶片磷脂的主要组分和脂肪酸组成。杜鹃叶膜磷脂主要是磷脂酰胆碱（ＰＣ）、磷脂酰乙醇脂（ＰＥ）、磷脂酰甘油（ＰＧ）和磷脂酰肌醇（ＰＩ），脂肪酸组成主要是棕榈酸（１６：０）、反式－３－十六碳烯酸（１６：１（ｔ））、硬胆酸、油酸、亚油酸、亚麻酸。研究结果表明，叶片膜磷胆的脂肪酸不饱和度及磷脂酰甘油（ＰＧ）的饱和脂肪酸水平均与品种抗寒性相关。抗寒品种毛白杜     

丙氨酰类脂的微波合成及其功能

利用微波合成仪制备双十六烷基胺，通过DCC交联反应，得到叔丁氧甲酰丙氨酰双十六烷基胺，再通过酸水解制备出丙氨酰类脂．利用丙氨酰类脂的季铵盐衍生物（丙氨酰肽脂质）构建人工二分子膜，研究了磷酸吡哆醛（PLP）与丙氨酰类脂的相互作用．紫外一可见光谱检测发现，在330nm及415nm处有亚胺的特征吸收峰，表明PLP可以识别人工二分子膜上的丙氨酰类脂，丙氨酰类脂可以用作人工细胞信号转导的受体．     

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.     

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     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with