含N,O,S木犀草素席夫碱的合成与结构表征

在木犀草素的生物活性和席夫碱的特有性质基础上，利用缩合反应，在无水乙醇中合成未见报道的黄酮类席夫碱(木犀草素缩苯胺、氨基硫脲)．并通过元素分析、紫外光谱、红外光谱、摩尔电导等手段对所其进行了结构表征．初步确定了其结构。     

含香兰素和氨基酸新型席夫碱的合成研究

本文报道了由氨基酸钾盐和香兰素合成了4种新的席夫碱．经过实验研究，找出了合成席夫碱的最佳条件，在氨基酸和香兰素投料的量为等物质的量的情况下，用乙醇溶液作溶剂，溶液的pH=7～8，反应温度50～60℃，反应时间为5小时，产率均高于51％，用紫外光谱对产品进行了分析。     

亮氨酸水杨醛席夫碱及其与锌（Ⅱ）配合物的合成、稳定性和抗菌活性

合成了亮氨酸水杨醛席夫碱及其与锌（Ⅱ）的配合物，通过元素分析、摩尔电导、红外光谱、电子光谱等手段进行了表征．用ｐＨ法测定了配合物稳定常数．实验发现，配合物抗菌活性优于配体的抗菌活性．     

胡椒基甲基酮甘氨酸席夫碱及稀土La(Ⅲ) 配合物的合成、表征及抑菌活性

合成了胡椒基甲基酮甘氨酸席夫碱及稀土配合物,并用元素分析、红外光谱、电子光谱和氢核磁共振谱对其进行了表征,结果表明:合成结果与理论结构相符。抑菌试验结果表明,该席夫碱配合物具有白色念球菌、大肠埃希氏杆菌和金黄色葡萄球菌生长的活性     

二溴水杨醛水杨酰腙席夫碱及Ni(Ⅱ)、Cd(Ⅱ)配合物的合成

采用3,5-二溴水杨醛与水杨酰肼反应合成二溴水杨醛水杨酰腙席夫碱,然后再将其分别与过渡金属Ni(Ⅱ)和Cd(Ⅱ)用作合成了二种新型的酰腙席夫碱配合物,并利用元素分析、红外光谱、紫外光谱进行表征.     

2,4-二羟基苯乙酮席夫碱化合物的合成

用间苯二酚合成2，4—二羟基苯乙酮，然后用2，4—二羟基苯乙酮与二氨基硫脲、氨基脲、氨基硫脲反应，合成了3种新的2，4—二羟基苯乙酮席夫碱化合物，利用元素分析、红外光谱、紫外光谱、荧光光谱确定了它们的结构。     

2-氨基-5巯基-1,3,4-噻二唑类席夫碱及其钼(Ⅵ)配合物的合成、表征及生物活性研究

合成了2-氨基5-巯基-1，3，4-噻二唑与水杨醛、邻-香草醛缩合而成的席夫碱及其钼(Ⅵ)配合物．通过元素分析，IR，^1H NMR，MS，UV—Vis光谱，摩尔电导等对所合成的化合物进行了表征，这类席夫碱合钼(Ⅵ)配合物尚未见文献报道．光谱研究表明配合物中金属钼离子为六配位，存在Cis—MoO2^2 结构．另外，还对配合物进行了杀灭棉铃虫活性及影响绿豆幼苗细胞存活率实验．实验表明配合物灭杀蚜虫和红蜘蛛的活性均高于甲胺磷，并对绿豆幼苗细胞有激活作用．     

三氮唑类席夫碱的合成及其生物活性（Ⅱ）

合成了５种５－氨基－１Ｈ－１，２，４－三氮唑－３－羧酸的席夫碱和５种３－氨基－１Ｈ－１，２，４－三氮唑－３－羧酸的席夫碱，其中６种为新化合物，采用紫外可见光谱、红外光谱、核磁共振氢谱和元素分析对其进行了表征和分析，并对它们进行了生物活性测试，结果表明，氨基三氮唑羧酸的席夫的植物生长调节活性比氨基三氮唑席夫碱的活怀要好，杂环化合物中，含吲哚环的夫碱有较高的活性。     

L-甲硫氨酸席夫碱及其锰(Ⅱ)配合物的合成、表征与抗癌活性

通过对氨基酸席夫碱合成方法的改进,合成了未见报导的4-OH-Sal-L-Met。K席夫碱及其锰(Ⅱ)配合物,并由元素分析、热重——差热分析、摩尔电导、红外光谱、氢核磁共振谱、电子光谱进行了表征。抗癌活性初步试验表明:锰(Ⅱ)配合物对艾氏腹水癌具有显著的抗癌活性,其抑制率达64.71%。     

槲皮素席夫碱金属配合物的合成、表征及性质研究

利用槲皮素的生物活性和席夫碱的特有性质将二者进行缩合反应制备出槲皮素席夫碱,并在含无水碳酸钠的无水乙醇中合成未见报道的槲皮素席夫碱金属配合物.通过元素分析、紫外光谱、红外光谱、摩尔电导等手段对所其进行了结构表征,初步确定了其结构.并研究了它们的抗菌活性.     

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