邻苯二酚紫作萃取剂金属离子的反相微胶团萃取

研究了以邻苯二酚紫（ＰＶ）为萃取剂，用阳离子表面活性剂在混合有机溶剂（正己烷：环己醇＝９：１）中形成反相微胶团萃取金属离子与邻苯二酚紫（ＰＶ）螯合物的条件，探讨了ＨＣｌ介质中溶液酸度，萃取剂和表面活性的浓度条件对金属离子的反相微胶团分配行为的影响，该体系可用于Ｚｒ＾４＋－Ａｌ＾３＋，Ｚｒ＾４＋－Ｇｅ＾４＋定量萃取分离，初步探讨了反相微胶团萃取的萃取机理。     

某些二茂铁甲氨基烷氧基硅烷的反相色谱行为

用反相薄层色谱（ＲＰ－ＴＬＣ）探索了某些二茂铁甲氨基烷氧基硅烷的反相高效液相色谱（ＲＰ－ＨＰＬＣ）分离条件。两种不同系列的二茂铁甲氨基烷氧基硅烷在ＲＰ－ＴＬＣ和ＲＰ－ＨＰＬＣ中均得到满意分离，并探讨了它们在反相色谱中保留特性与分子结构及流动相组成的关系。     

贻贝Mytilus edulis磷脂成分的分析

对浙江产紫贻口的总指和磷脂进行了提取和定量,并分别用薄层层析法、气相色谱法对磷脂的组分、总脂和磷脂的脂肪酸组成进行了分析,结果表明：在收秋旺季,贻贝的总脂含量为2．15％－2．68％,磷脂含量在5．02％C－6．95％范围内,占总胎的21．00％－27．30％磷脂组分以PC和PE为主;与大豆和蛋黄的磷脂相比,贻贝总脂和磷脂含有更多的高不饱和脂肪酸,此外贻贝磷脂小的脂肪酸不饱和度及EPA与DHA之和要高于总脂。     

RP－HPLC法快速测定哒螨酮

研究了反相液相色谱法（ＲＰ－ＨＰＬＣ法）测定哒螨酮的条件。固定相为ＹＷＧ－Ｃ＿１８，甲醇水溶液（９０：１０）为流动相，流量为１ｍｌ／ｍｉｎ，检测波长为２２０ｎｍ。在上述条件下，哒螨酮线性范围为０～２５０ｎｇ／２５ｍｌ，检测限为０．２５ｎｇ／２５ｍｌ，相对偏差为０．１６，回收率为９９．６％～１０６．２％。该方法简便、快速、灵敏、准确，可用于农药厂样品的测定。     

海藻糖与脂质膜相互作用的研究

以蛋黄卵磷脂 (EPC)为模型 ,通过测定相变发生时卵磷脂吸热量的变化及卵磷脂脂肪酸链CH2 基团的对称伸展振动频率变化 ,阐明了海藻糖对蛋黄卵磷脂 (EPC)脂质膜相变的影响 ,并对其作用机理进行探讨 .FTIR红外光谱分析表明 ,海藻糖之所以能在相变温度以上将脂质膜维持在双层相 ,是由于海藻糖和磷脂酰胆碱的头部基团形成氢键 ,这是一种直接相互作用的结果     

反相高效液相色谱法分析辅酶Q10

本实验应用色谱技术,建立了辅酶Q10的检测方法。采用反相高效液相色谱法,以十八烷基硅烷键舍硅胶为固定相,以无水乙醇－甲醇（1：1）为流动相;柱温35℃,检测波长275nm。结果表明：辅酶Q10的含量为6mg／g。     

HPLC法测定邻苯二酚醚化的相转移催化合成产物的研究

在反相C18色谱柱上建立了测定邻苯二酚醚化的相转移催化合成产物的高效液相色谱方法。流动相为甲醇(A)和含0．2％醋酸水(B)的混合溶液，A：B=80：20(v／v)，流速1．0mL／min，紫外检测波长270nm，内标物为苯乙酮。应用该法分析测试了不同反应条件下实验室合成产物共50多个样品，结果满意。     

Cu（Ⅱ）和Fe（Ⅲ）-EDTA螯合物的反相离子对高效液相色谱分离和测定

建立了一种同时测定Fe（Ⅲ）和Cu（Ⅱ）-EDTA螯合物的反相离子对高效液相色谱法．以乙二胺四乙酸二钠盐（EDTA）作柱中衍生剂，研究了分离、测定Ve（Ⅲ）和Cu（Ⅱ）的EDTA螯合物的最佳条件．在Waters Spherisorb ODS2色谱柱上，以甲醇-水（体积比40：60）作流动相（pH=5．29），在265nm处检测，Fe（Ⅲ）和Cu（Ⅱ）的最小检出限分别为0．053和0．176ng．常见阳离子和阴离子均不干扰测定，用该方法测定了人发中铁和铜的含量．     

IMI及其微生物转化产物5-hydroxy IMI的HPLC分析

研究了烟碱类杀虫剂IMI及其微生物转化产物5-hydroxy IMI的反相高效液相色谱分析方法．采用Zorbox OSD反相柱，水和乙腈（75：25）（v／v）为流动相，流速为1mL／min，检测波长为269nm，IMI和5-hydroxy IMI得到较优分离．在0．5～50mg／L的浓度范围内，两种物质的色谱峰面积和浓度之间呈线性关系，IMI和5-hydroxy IMI的标准工作曲线分别为y=112．23x-1．7775和y=98．039x-17．508；相关系数为0．9999和0．9997．转化产物的样品中IMI和5-hydroxy IMI添加的回收率分别为99．3％和97．4％．     

反相胶束软模板法合成Ag2S半导体纳米棒

利用反相胶束软模板法合成了直径30－50nm，长约1.5μm，晶胞常数a=0.423nm,b=0.693nm,c=0.786nm，单斜结构的Ag2S多晶纳米棒，并对纳米棒的产生机理进行了初步探讨。     

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.     

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.     

A computer generator for randomly layered structures

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

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。     

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     

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     

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

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An on-line scaling method for improving scalability of a database cluster

The explosive growth of the Internet and database applications has driven database to be more scalable and available, and able to support on-line scaling without interrupting service. To support more client's queries without downtime and degrading the response time, more nodes have to be scaled up while the database is running. This paper presents the overview of scalable and available database that satisfies the above characteristics. And we propose a novel on-line scaling method. Our method improves the existing on-line scaling method for fast response time and higher throughputs. Our proposed method reduces unnecessary network use, i.e. , we decrease the number of data copy by reusing the backup data. Also, our on-line scaling operation can be processed parallel by selecting adequate nodes as new node. Our performance study shows that our method results in significant reduction in data copy time.     

An improved R-tree based on childnode''s probability

R-Tree is a good structure for spatial searching. But in this indexing structure,either the sequence of nodes in the same level or sequence of traveling these nodes when queries are made is random. Since the possibility that the object appears in different MBR which have the same parents node is different, if we make the subnode who has the most possibility be traveled first, the time cost will be decreased in most of the cases. In some case, the possibility of a point belong to a rectangle will shows direct proportion with the size of the rectangle. But this conclusion is based on an assumption that the objects are symmetrically distributing in the area and this assumption is not always coming into existence. Now we found a more direct parameter to scale the possibility and made a little change on the structure of R-tree, to increase the possibility of founding the satisfying answer in the front sub trees. We names this structure probability based arranged R-tree (PBAR-tree).     

Integrating GIS Web services based on mediating architecture

The geographic information service is enabled by the advancements in general Web service technology and the focused efforts of the OGC in defining XML-based Web GIS service. Based on these models, this paper addresses the issue of services chaining,the process of combining or pipelining results from several interoperable GIS Web Services to create a customized solution. This paper presents a mediated chaining architecture in which a specific service takes responsibility for performing the process that describes a service chain. We designed the Spatial Information Process Language (SIPL) for dynamic modeling and describing the service chain, also a prototype of the Spatial Information Process Execution Engine (SIPEE) is implemented for executing processes written in SIPL. Discussion of measures to improve the functionality and performance of such system will be included.