基于B/S模式的WEB数据库技术研究

章分析了基于Ｗｅｂ的网络数据库应用技术,论述了网络数据库数据存取的各种模式,在Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ实施中,提出了一种基于ＷＥＢ的Ｂｒｏｗｓｅｒ／Ｓｅｒｖｅｒ模式结构。     

基于 CIMS 应用集成平台的企业 Internet/Intranet 接口技术

Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术的发展促进了市场的世界化进程,企业对从Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ上获取信息与采用该技术管理企业内部资源的需求越来越迫切。本文从ＣＩＭＳ应用的角度出发,阐述了Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术在制造业企业中的作用,结合ＣＩＭＳ应用集成平台的研究,介绍了集成平台Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ接口技术的设计特点,给出了Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ应用系统的客户服务器（Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ）体系结构;描述了ＣＩＭＳ应用集成平台Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ应用系统的设计与实现模型。该项目的研究最终能够使企业的计算机应用系统与Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术有机的结合起来,为企业通过Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术实现虚拟制造奠定良好的理论基础。     

数据挖掘与虚拟数据库

给出了数据挖掘的概念及数据挖掘系统的分类,并基于Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ数据挖掘给出了虚拟数据库技术的基本思想及实现     

一个基于Socket的安全授权及其认证的编程框架

描述了在Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ环境下基于ＵＮＩＸＳｏｃｋｅｔ接口进行安全授权鉴别编程的基本原理及方法,着重讨论了ＴＣＰ／ＩＰ网络的编程,并给出一个客户机／服务器模式应用中的安全授权及其认证的实现框架。     

Internet环境下MIS的解决方案

本文讨论了Ｃｌｉｅｎｔ／Ｓｅｒｖｅｒ和Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ对ＭＩＳ的影响,探讨了在不同情况下基于Ｗｅｂ的客户如何访问数据库服务器,表明了ＭＩＳ将逐步由ＣｌｉｅｎＳｅｒｖｅｒ两层结构向带有中间服务器层的三层结构迁移,阐述了在三层结构中应用服务器的重要性以及它将对ＭＩＳ所产生的重要影响     

计算机网络辅助教学系统的研究

介绍了基于 Ｉｎｔｅｒｎｅｔ／ Ｉｎｔｒａｎｅｔ 技术、基于视频会议技术的计算机网络辅助教学系统,详细讨论了该系统的结构、功能、技术难点,并指出了进一步发展的方向．     

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、…     

GIS应用体系结构发展演化及Web GIS实现方法与应用研究

ＷｅｂＧＩＳ俗称万维网地理信息系统,又有人称它为ＩｎｔｅｒｎｅｔＧＩＳ,是一种基于Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ的技术标准和通信协议的网络化地理信息系统,它系ＧＩＳ技术和Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术相结合的产物。一、ＧＩＳ系统技术应用体系结构的发展演化经过近４０年的发展,ＧＩＳ系统已从原来的带有学术研究性质的应用研究逐步走向服务于企业、服务于管理的社会化应用发展研究,并且已广泛应用于科研教育、社会生产、管理决策等各个层面和领域。与整个计算机技术发展过程相适应。近４０年来,ＧＩＳ系统…     

科研院所 Intranet 网络设计与应用系统分析

结合一例Ｉｎｔｒａｎｅｔ网络设计和应用系统设计的实践,剖析了Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ技术的体系结构、技术特点及其与Ｎｅｔｓｃａｐｅ、Ｎｏｔｅｓ应用软件的有效链接方式和广阔应用前景。     

面向敏捷制造模式的质量保证信息系统研究

在分析敏捷制造模式下质量保证信息系统的需求与特点的基础上,提出基于Ｉｎｔｅｒｎｅｔ／Ｉｎｔｒａｎｅｔ／Ｅｘｔｒａｎｅｔ的分布质量保证信息系统的体系结构,建立了系统的开发环境并对系统开发的关键技术进行了初步研究,采用Ｊａｖａ语言开发了基于Ｗｅｂ的质量评价子系统。     

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.     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that