利用ASP开发基于Intranet的MIS

人类已经进入了信息时代,计算机网络已广泛应用于各行各业。许多企业建立自己的Ｉｎｔｒａｎｅｔ或联入Ｉｎｔｅｒｎｅｔ。当他们将信息纳入到Ｉｎｔｒａｎｅｔ／Ｉｎｔｅｒｎｅｔ的框架之后,面临一个共同的问题：如何通过Ｗｅｂ页面来访问后台数据库中的信息。目前,通过Ｗｅｂ页面来访问后台数据库的方法有多种,例如：ＣＧＩ、ＩＳＡＰＩ、ＪＤＢＣ等。ＡＳＰ（ＡｃｔｉｖｅＳｅｒｖｅｒＰａｇｅｓ）是Ｍｉｃｒｏｓｏ且公司为ⅡＳ３．０以及ＭＳＰｅｒｓｏｎａｌＷｅｂＳｅｒｖｅｒ等Ｗｅｂ服务器开发的动态站点设计技术,它具有动态、…     

ActiveX控件及其开发

简要介绍了ＡｃｔｉｖｅＸ及其控件技术,并通过实例分析了用ＶＢ５．０开发ＡｃｔｉｖｅＸ控件的方法。     

ADO数据存取技术

因特网的飞速发展，使得基于Ｗｅｂ的数据库技术变得非常重要。Ｍｉｃｒｏｓｏｆｔ ＡｃｔｉｖｅＸ Ｄａｔａ Ｏｂｊｅｃｔｓ是以ＡｃｔｉｖｅＸ技术为基础的数据存取技术。使用ＡＤＯ，客户端应用程序能够通过任何ＯＬＥ ＤＢ提供者来访问和操作库服务器中的数据。文章分析了ＡＤＯ的工作原理，给出了ＡＤＯ的使用方法，以及如何用ＶＢ和ＶＣ＾＋＝两种编程语言建立数据库连接，创建和激活命令，处理和更新数据等实现ＡＤＯ数据     

用ASP开发Internet数据查询系统

介绍了用Ａｃｔｉｖｅ Ｓｅｒｖｅｒ Ｐａｇｅｓ（简称ＡＳＰ）技术开发Ｗｅｂ页面的优点，ＡＳＰ档的处理过程，并以员工查询系统为例，介绍了用ＡＳＰ技术开发Ｉｎｔｅｒｎｅｔ数据查询系统的方法。     

用Visual Basic开发ActiveX控件

通过三个不同视觉分析ＡｃｔｉｖｅＸ控件，提出开发ＡｃｔｉｖｅＸ控件的四种模式及工作机理。     

Oracle Web Application Server在教材管理系统中的应用

本文对当前几种流行的Ｗｅｂ数据库技术进行了分析,介绍了Ｏｒｃｌｅ Ｗｅｂ ＡｐｐｌｉｃａｔｉｏｎＳｅｒｖｅｒ的Ｗｅｂ数据库解决方案,描述了使用Ｏｒａｃｌｅ Ｗｅｂ ＡｐｐｌｉｃａｔｉｏｎＳｅｒｖｅｒ动态生成教材管理系统查询页面的方法。     

ActiveX控件在VFP多媒体程序设计中的应用

讨论了基于ＣＯＭ部件重用的ＡｃｔｉｖｅＸ控件应用技术,并结合一个ＶＦＰ多媒体应用程序开发实例给出了注册、使用的方法。     

跨平台可重用组件开发

以Ｄｅｌｐｈｉ３．０Ｃ／Ｓ开发工具为例，介绍了可重用组件的开发过程，及转化开发好的组件为ＡｃｔｉｖｅＸ控件的相关技术，使其能运行于网页上和其他开发工具，从而创建跨平台可重用软件建筑模块，实现代码重用性。     

Intranet中Web与数据库集成技术分析

着重研究了Ｉｎｔｒａｎｅｔ中Ｗｅｂ与数据库的集成技术,分析比较了ＣＧＩ,专用网关接口,ＡｃｔｉｖｅＸ,ＡＳＰ及ＪａｖａＡｐｐｌｅｔ等技术的优缺点和应用环境,并提出一个跨平台能力强,动态性和交互性好,可扩展性强的方案,该方案在企业组建Ｉｎｔｒａｎｅｔ,开发Ｉｎｔｒａｎｅｔ数据库应用方面具有参考和借鉴价值。     

程控交换管理信息系统的开发

ＶＢ６．０的ＡＣＴＩＶＥＸ软件与应用程序接口的特性和Ｏｆｆｉｃｅ９７的Ｗｅｂ页技术，使管理信息系统具备前后端相屏蔽和动态维护的新特性。     

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.     

Wuhan University Journal of Natural Sciences TOTAL CONTENTS

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Advances in broadband wireless communications under high-mobility scenarios

Future mobile communication systems aim at providing very high data transmission rates, even in high-mobility scenarios such as high-speed wheel-track trains, maglev trains, highway vehicles, airplanes, guided missiles or spacecraft. A particularly important commercial application is the strong and increasing worldwide demand for high- speed broadband wireless communications （up to 574.8 km/ h test speeds or 380 km/h commercial speeds） in railways, providing data, voice and video services for applications such as onboard entertainment services to passengers, train control, train dispatch, train sensor status handling and sur- veillance. In such high-mobility scenarios, there are a number of communication challenges, including fast hand- over, location updating, high-speed channel modeling, estimation and equalization, anti-Doppler spreading tech- niques, fast power control, and dedicated network architec- ture. Because signal transmission in very high-speed scenarios will inevitably experience serious deterioration, it is imperative to develop key broadband mobile communi- cation techniques for such high-speed vehicles.     

Perspherical Approaches for Electrons in Atoms and Charged Excitons in Quantum Wells

Instead of following Fock’s expansion,we solve the Schrodinger equation for some quantum mechanical manybody systems such as electrons in atoms and charged excitons in quantum wells in a similar way in hyperspherical coordinates by expanding the wave functions into orthonormal complete basis sets of the hyperspherical hannonics(HHs)of hyperangles and generalized Laguerre polynomials(GLPs)of the hyperradius.This leads the equation to     

Scale-based spatial data model for GIS

Being the primary media of geographical information and the elementary objects manipulated, almost all of maps adopt the layer-based model to represent geographic information in the existent GIS. However, it is difficult to extend the map represented in layer-based model. Furthermore, in Web-Based GIS, It is slow to transmit the spatial data for map viewing. In this paper, for solving the questions above, we have proposed a new method for representing the spatial data. That is scale-based model. In this model we represent maps in three levels: scale-view, block, and spatial object, and organize the maps in a set of map layers, named Scale-View, which associates some given scales.Lastly, a prototype Web-Based GIS using the proposed spatial data representation is described briefly.     

英文诗歌中的喻类修辞

为了有助于提高英文爱好者的个人情操、文化素养和学习兴趣,以及专业人员对英语学习和研究进行多途径的探索,本文通过一些精选诗歌的引证和分析,着重论述了喻类修辞法在英文诗歌中的运用其及效果。     

Man Is Unable to Change the Miserable Life——Analysis of the Arrangement of Four Characters in The Glass Menagerie

Tennessee Williams is considered as one of the most important American playwrights since World War II.The Glass Menagerie is his first successful drama,which describes a tragic situation of family and means to say that Man is unable to change the miserable life,no matter whatever means he try,This essay focuses on the analysis of the arrangement of the four main characters:Laura.Amanda,Jim and Tom to reveal the theme.Laura is fragile.Amanda is brave.Jim is vital.Tom is sensible.And all of them develop and try the different means to struggle against life,but fail tragically.With the evidence,the paper comes to conclusion naturally that Man is unable to change the miserable life,and he dooms to fail.     

Characterization of root-nodulating bacteria on Retama raetam in arid Tunisian soils

The aim of this study is to investigate the diversity of Retama raetam root-nodule bacteria isolated from arid regions of Tunisia. Twelve isolates, chosen as representative for different 16S rRNA gene patterns, were characterized by 16S rRNA gene sequencing and phenotypic analysis. Isolates were assigned to Sinorhizobium, Rhizobium and Agrobacterium. Symbiotic properties of Sinorhizobium and Rhizobium isolates showed a large diversity in their capacity to infect their host plant and fix atmospheric nitrogen. Strain RK 22 identified as Rhizobium was the most effective isolate.     

WIMAX与WI-FI技术分析及联合组网

介绍了WiMAX与Wi-Fi两种无线宽带接入技术,并对两者之间的关系及相互之间的影响做了对比及分析,并对WiMAX的关键技术进行了详细说明,最后对两者的联合组网方式做了简单的探讨。     

An Affordable Accurate Evaluation of the Binding Conformations Predicted by Molecular Docking Studies in Bio-System

正Recently,docking has been widely used to predict the binding-modes of protein-inhibitors,when the crystal complexes structure was absent.Most docking algorithms are able to generate a large number of probable conformations,it,however,is difficult to effectively evaluate these docking poses and identify the most reasonable bindingmode.In the present study,on the basis of the crystallographic data of human 3-hydroxy-3-methylglutaryl coenzyme