微格教学综合评价系统设计与实现

信息监控和评价信息化是微格教学发展中的重要方面．使用数据库技术和现代软件技术设计和实现微格教学综合评价系统，并利用模糊综合评判的方法设计微格教学的评价体系，为微格教学提供了一种科学客观的评价方法．其中，详细阐述了C／S和B／S结合的系统综合体系结构和功能模型及实现方法．C／S结构主要用于计算和统计评价，B／S结构用于评价结果发布和信息查询．实践证明，应用混合体系结构开发和应用系统收到较好的效果．     

B/S和C/S混合结构在试飞系统中的应用

利用Internet应用技术，加强试飞、测试工程等数据信息资料在航空科研工程中的实际应用．根据当前两大主流开发模式B／S和C／s架构技术的比较和分析，结合当前技术和试飞数据库的特点，选择合适的系统开发结构并作了详细的设计，在此基础上，给出了C／S和B／S混合结构在系统中的应用及系统工作过程中的工作流程．     

网络分销管理系统的开发与应用

系统采用当今最先进的Microsoft．net技术开发，以基于B／S结构的信息系统为核心，构建网络分销管理系统的框架，使用数据库服务分离的技术，实现了系统各模块的相应功能．在应用中，客户只需使用标准浏览器上网即可使用该系统的全部功能，且在最大程度上保证B／S结构的运行效率和数据的安全性．     

基于B/S结构的教师信息监测系统研究

在分析河北省中小学师资队伍信息化建设现状的基础上，构建网络环境下基于B／S结构的教师信息监测系统，阐述了该系统的总体结构、功能模块和实现方案，以及应用情况．     

基于B/S三层模式的应用开发设计

本文从几个方面来阐述了一种基于B／S模式的思想。在对B／S结构和C／S结构进行充分分析比较的情况下，结合现有系统的数据资源，提出了一种新的应用体系，即结合B／S与C／S提出一种三层结构，充分利用已经开发的应用系统资源，从而开发出高效、安全的应用系统。     

基于网络结构的安全管理信息系统设计

文章根据安全管理信息系统的实际需要，结合计算机、非接触式IC卡、网络、数据库等技术，提出了基于网络体系结构的安全管理信息系统设计与实现方法．在系统的设计与实现过程中，分析了系统的硬件拓扑结构、软件功能结构、系统所用到的关键技术，同时对系统的性能机制给予了相应的说明．系统的硬件拓扑结构在计算机端采用星型拓扑结构，在下位机端采用总线拓扑结构，两种拓扑结构之间采用485—232转换器进行连接．软件系统针对不同的功能需要采用B／S、C／S混合结构，该种软件结构充分利用的C／S、B／S两种结构的优势，使系统的安全性、稳定性得到很大程度的提高．该系统已在天津人民广播电台投入实际使用，取得了良好的实际效果．     

高校网上考试策略研究和分布式系统的实现

针对当前高校课程考试中出现的新问题和应用需求，提出了相应的解决方案和策略，并结合计算机新技术，利用.NET平台，设计和实现了基于B／S结构、分布式管理的Web考试系统．应用结果表明：所提出的策略和设计方案可行，系统具有很好的应用和推广价值．     

基于B／S和C／S架构的农产品成本分析系统的设计与开发

利用B／S或C／S结构的分布式多层体系构建系统模型，并利用动态网页设计、数据库开发等相关技术开发功能完善、操作方面、安全的农产品成本分析系统，实现农产品成本分析的图形化表示，为领导制定农业政策提供重要支持。     

基于C/S和B/S混合结构的水泥销售系统的分析与设计

分析和比较了C／S和B／S两种体系结构的特点，结合某企业的业务管理规则和行业管理规范，给出了基于C／S和B／S混合结构的水泥销售系统的分析、设计及实现过程．     

用．NET2．0开发实验器材管理系统

基于微软的．NET2．0框架，提出并实现了一个B／S结构的高校实验器材管理信息系统。文章介绍了采用．NET2．0框架的多层体系进行系统的总体构架设计，详细说明了系统的设计思想和实现方法，并重点讨论了Micmsoft SQL Server数据库编程、全新的Web开发技术ASP．NET2．0在系统中的应用。     

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.