β—环糊精与萘普生的包络反应及荧光分析

采用荧光光谱法系统地了萘普生的自身荧光现象及其与β－环糊精因包络反应的而产生的荧光增敏作用,试验了在不同条件下的荧光性质,提出了测定萘普生含量的高灵敏荧光光度分析方法,荧光激发峰λｅｘ＝２２９ｎｍ,,荧光发射峰λｅｍ＝３５３ｎｍ,荧光强度（Ｆ）与萘普生的浓度在６．１４×１０＾－８ｍｏｌ·Ｌ＾－１￣１．３６×１０＾－５ｍｏｌ·Ｌ＾－１范围内呈线性关系,分析方法操作简便、快速,重现性好,结果令人满意。     

钒—9—（3,5—二溴）水杨基荧光酮—溴化十六烷基三甲基？…

研究了钒－９－（３,５－二溴）水杨基荧光酮－ＣＴＭＡＢ三元配合物的显色反应条件,在ＰＨ５．５的六次甲基四胺ＨＣｌ缓冲溶液中,钒与试剂形成１：２的配合物,其最大吸收波长λｍａｘ＝５５７ｎｍ,表观摩尔吸光系数为ε＝１．８１×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,钒含量在０－９μｇ／２５ｍｌ范围内符合比耳定律,采用适当的分离手段,测定了钢样中的微量钒,结果满意。     

铁（Ⅲ）—9—（3,5—二溴）水杨基荧光酮—溴化十六烷基三？…

研究了铁（Ⅲ）－９－（３,５－二溴）水杨基荧光酮－ＣＴＭＡＢ三元络合物的显色反应条件,在ＰＨ６．０－７．２的ＫＨ２ＰＯ４－ＮａＯＨ缓冲体系中,铁（Ⅲ）与９（３,５－二溴）水杨基荧光酮形成１：４的络合物,其最大吸收波长λｍａｘ＝５９０ｎｍ,表观魔鬼洋吸光系数为１．７２×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１,铁含量在０－６μｇ／２５ｍＬ范围内符合比耳定律,方法灵敏度高,选择性较好,络合物稳定,用于牛肝     

DApBM—V（Ⅴ）—Mn（Ⅱ）—Twenn—80体系光度法测定钒（Ⅴ）

在磷酸介质中，在Ｍｎ和Ｔｗｅｅｎ－８０存在下，ＤＡｐＢＭ与钒生成橙黄色化合物，产物至少可稳定３．５ｈ，最大吸收波长为４８５ｎｍ。摩尔吸光系数ε＝４．０１×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１和ε＝１．５７×１０＾４Ｌ．ｍｏｌ＾－１．ｃｍ＾－１，钒量在０．５－３．０μｇ／２５ｍｌ及３．０－１０．０μ／２５ｍｌ间符合比尔定律。     

二溴羟基苯基荧光酮分光光度法测定微量锰的研究

研究了在表面活性剂溴化十六烷基三甲胺（ＣＴＭＡＢ）存在下,二溴烃基苯基荧光酮（ＤＢＨ－ＰＦ）分光光度法测定微量锰的最佳显色条件及应用,实验结果表明,在ｐＨ９．４～１０．１的硼砂－ＮａＯＨ缓冲溶液中,锰与ＤＢＨ－ＰＦ形成的１：２的配合物,其最大吸收波长λｍａｘ＝５９０ｎｍ,表观摩尔吸光系数为ε５９０＝１．５１×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,锰含量在０～６μｇ／２５ｍｌ范围符合比定律,方法用于     

Zn（II）—C2O4^2—SAF—CTMAB体系的分光光度研究及应用

研究了锌（Ⅱ）－草酸盐－水杨基荧光酮（ＳＡＦ）－溴化十六烷基三甲铵（ＣＴＭＡＢ）体系形成四元混配络合物的显色反应条件，在ｐＨ９．０的硼砂－ＨＣｌ缓冲溶液中，形成摩尔比为Ｚｎ（Ⅱ）：Ｃ２Ｏ４＾２－：ＳＡＦ：ＣＴＭＡＢ＝１：１：２：４的紫红色络合物，络合物的最大吸收波长为λｍａｘ＝５６０ｎｍ、表观摩尔吸收系数ε５６０为１．１×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，锌（Ⅱ）含量在０￣８μｇ／２５ｍＬ范围     

锌（II）—3,5—二溴—PADAP—C2O4^2——吐温80显色体系的分光…

研究了锌（Ⅱ）－３，５－二溴－ＰＡＤＡＰ－草酸盐－吐温８０体系形成四元混配络合物的显色反应条件，确定了络合物的组成，其最大吸收波长λｍａｘ＝５７２ｎｍ，表现摩尔吸光系数为ε５７２ｎｍ＝１．５×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，锌含量在０￣６μｇ／２５ｍｌ范围符合比耳定律。方法用于测定脱脂奶粉及人发中的微量锌（Ⅱ），结果满意。     

5‘—硝基水杨基荧光酮荧光猝灭法测定微量锡

基于Ｓｎ－５‘－硝基水杨基荧光酮－Ｔｗｅｅｎ－８０体系的荧光猝灭效应，提出一种测定微量锡的新荧光分析方法。在０．８－１．２ｍｏｌ／Ｌ的硫酸介质中，在Ｔｗｅｅｎ－８０存在下，锡与５’－Ｎ－ＳＡＦ形成摩尔比为１：４的橙红色络合物。该体系存在两个激发峰，其激发波长分别为λｅｘ１＝４７５ｎｍ，λｅｘ２＝５０５ｎｍ，发射波长λｅｍ＝５２５ｎｍ。     

铍—二溴羟基苯基荧光酮Brij—35的显色反应

研究了铍－二溴羟基苯基荧光酮－Ｂｒｉｊ－３５胶束显色反应的最佳形成条件，在ｐＨ８．３－９．５的弱碱性介质中，配合物最大吸收波长是５４８ｎｍ，其表观摩尔吸光系数是１．４２×１０＾５Ｌ．ｍｏｌ＾－１，ｃｍ＾－１，铍量在０－１．６μｇＢｅ／２５ｍＬ范围内遵守比尔定律。     

二安替比林基—（3,4—亚甲二氧基）—苯基甲烷光度法测定微…

合成了二安替比林基－（３，４－亚甲二氧基）苯基甲烷，研究了ＤＡＤＭＰＭ与Ｃｒ的显色反应。在Ｈ３ＰＯ４介质中，在Ｍｎ和吐温２０存在下，Ｃｒ与ＤＡＤＭＰＭ反应生成橙黄色产物，λｍａｘ为４７０ｎｍ，摩尔吸光系数ε＝３．０×１０＾５Ｌ．ｍｏｌ＾－１．ｃｍ＾－１。     

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…     

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).     

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.     

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.