后铝化的Al-SBA-15稳定性研究

通过预处理后铝化的方法，合成了Al-SBA-15。焙烧后的Al-SBA-15的^27Al MAS NMR谱证明铝已化合到SBA－15的骨架中，并有少量非骨架铝存在，用XRD、低温N2吸附等方法考察了Al-SBA-15在1000℃焙烧2h,800℃100％水蒸气处理8h和在PH为2或11的酸碱溶液中的稳定性，经处理的Al-SBA－15具有比Si-SBA-15更好的热、水热稳定性以及酸碱溶液稳定性。     

酸碱条件下脱镁叶绿酸-a甲酯的空气氧化反应

以对叶绿素－a甲酯1为原料，在碱性条件下，其E－环经空气氧化发生重排而构成内酯，生成紫红素－18甲酯的镁铬合物，先后经硫酸脱金属镁离子和重氮甲烷酯化形成紫红素－18酯3，在酸性条件下对1进行空气氧化，其13^2位的氢原子被氧化而转变为羟基，生成（S）－和（R）－13^2－羟基脱镁叶绿－a甲酯异构体4a和4b。分离和表征了氧化产物，并根据反应条件提出可能的反应机理。所得到的氧化产物－叶绿酸衍生物均经UV、IR、^1H NMR及元素分析证明其分子结构。     

蒸汽相中多孔玻璃自转晶含硼CF02沸石的制备与表征

报道了在最小的有机胺－甲胺和水的蒸汽相中，多孔玻璃粉自转晶为含硼CF－2沸石，XRD、^11B MAS NMR、SEM表征结果证明合成的CF－2沸石结晶度高且无杂晶，硼原子基本上都已进入了沸石骨架，扫描电镜照片还显示，合成了的CF－2沸石中既有单个晶全，也有由许多单个晶体构成的扫帚形聚集体，单个晶体呈长条形，高、宽为0．30－1．1μm，长为1．1－22μm。     

3′—长直链饱和羧酸甘油酯的^13CNMR及^1HNMR的研究

对3′－－长直链饱和羧酸甘油酯的^13CNMR及^1HNMR进行研究，表明其^13CNMR及^1HNMR表现出极强的规律性，并且探讨了NMR及其结构之间的关系，发现它们的^1HNMR谱中出现典型的ABX系统质子峰，并发现由于长酯链的存在使甘油分子中C－C键的自由链转受到阻碍或限制而引起的磁不等同质子现象。     

三七中2－（1‘,2’,3‘,4’－四羟基丁基）－6－（2^〃，3^〃，4^〃－三羟基丁基）吡嗪的分离、纯化和结构鉴定

从三七水溶性成分中首次分离得到一个多羟基吡嗪衍生物,该化合物经MS,NMR,^1H-^1HCOSY,^13c-^1HCOSY,HMBC等鉴定其结构为2－（1‘,2‘,3‘,4‘-四羟基丁基）－6－（2^〃,3^〃,4^〃－三羟基丁基）－吡嗪。将分离样品与化学合成的化合物进行了对照,进一步证明了该化合物的结构。     

1，3，4-噁二唑并1，2，4—三唑类双杂环的合成

采用生物活性基团拼接的分子设计方法,将两类活性杂环N－多氟烷基-4－苯基5对碘苯基-1,2,4三唑-3-硫酮和N－多氟烷基－5－对碘苯基－1,3,4-噁二唑－2-硫酮以Sonogashira偶联的方式进行拼接,设计并合成了几个新型双杂环化合物,其结构经过^1HNMR,^19F NMR,IR和MS谱以及元素分析确证．     

α-(1H-1,2,4-三唑-1-基)-β-芳胺基丙烯腈的合成及生物活性

利用芳胺与中间体α－（1H－1，2，4-三唑－1－基）－β－芳胺基丙烯腈腈盐酸盐（2）的亲核取代反应，合成了一系列目标化合物α－（1H－1，2，4-三唑－1－基）－β－芳胺基丙烯腈（3a-3r)，所有化合物均经元素分析和^1H NMR确定，由^1H NMR分析结果推断为E式构型，初步生物活性测定结果表明，部分化合物有一定的杀菌活性。     

3β—取代5—甾烯并—1—取代[17,16—C]吡唑啉—5—酮和3β—取代5—甾烯并[17,16—C]异恶唑啉—5—酮的合成

以3β－取代5－甾烯－17－酮与碳酸二甲酯经Claisen综合，所得产物再分别与肼或羟胺反应，设计合成了几种3β－取代5－甾烯并－1－取代[17,6-C]吡唑啉－5－酮和3β－取代5－甾烯并[17,16-C]异恶唑啉－5－酮，其结构经元素分析、IR、^1H NMR和^13C NMR确证。     

类蛋白质阻垢剂聚天门冬氨酸的合成研究

以L－天门冬氨酸（L－Asp)为原料，采用分散悬浮聚合法合成出具有优异阻垢性能的聚天门冬氨酸。通过正交试验设计确定了适宜的反应条件，并讨论了催化剂用量、聚合温度、聚合时间、原料粒度等对产品性能及分子量的影响。利用IR、^13CNMR和^1H NMR对聚合物进行了表征。研究表明适量催化剂可保护－NH2基，减少副反应，加快反应速度，同时可提高分子量，能催化剂过量时起封端作用。具有优异阻垢性能的聚天门冬氨酸盐的聚合度约为100。     

5—氟尿嘧啶—1—基磷二肽化合物的合成及抗癌活性

以二环己基碳二酰亚胺（DCC）／1－羟基苯并三氮唑（BtOH)为偶联剂,通过液相偶联法合成了一系列新型5－氟尿嘧啶－1－基磷二肽化合物,收率达58．2％－77．8％,所有化合物经1H NMR,^31P NMR,IR光谱和元素分析证实,提出了合成中间体5－氟尿嘧啶－1－基乙酸的方法,其优点是操作简便且产率高,对部分化合物进行了抗癌活性测试,结果表明该类化合物对HL－60和BEL－7404癌细胞生长具有一定的抑制作用。     

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