医学院校网上自动答疑系统的实现

网上自动答疑是医学院校网络远程教学中的重要环节。基于ASP．NET的网上自动答疑系统是一个三层的WEB数据库系统，其设计目标是为学生提问和教师答疑提供一个网上交流平台，增强网络学习的开放性、自主性、共享性。作者分析了自动答疑系统的相关技术，重点介绍了自动答疑系统的主要功能。     

基于B/S模式的高等自学考试网上报名报考系统

文章阐述了使用ASP.NET与SQL SERVER 2000开发基于B/S模式的高等自学考试网上报名报考系统的设计思想、总体结构、主要技术,并对其主要功能模块进行了描述.     

基于.NET技术网络教学系统的设计与实现

基于.NET技术网络教学系统集网络课堂教学、网上作业、实践教学、在线测试、网上答疑等功能为一体,能够为教员、学员的交流搭起新的桥梁,对军队院校教学改革有着十分重要的意义。本文主要从构架设计、各功能模块的组成、开发工具、数据库的设计与实现等方面对该系统进行了阐述。     

基于ASP．NET的网上购物系统的设计与实现

ASP．NET是当前Web应用开发中流行的技术,本文探讨和研究系统的开发原理。设计并实现基于ASP．NET平台的网上购物系统,同时详述了各个功能模块及所采用的关键技术,以及购物车实现的优化方案。     

基于WEB和数据挖掘技术的自动答疑系统的设计

针对目前国内答疑系统的不足,本文对网上自动答疑系统的设计进行了论述,提出了系统自动答疑实现和数据挖掘在数据分析处理中的应用。     

基于WEB和数据挖掘的动答疑系统的设计

针对目前国内答疑系统的不足,本文对网上自动答疑系统的设计进行了论述,提出了系统自动答疑实现和数据挖掘在数据分析处理中的应用。     

基于Internet的机械设计通用支持系统及其关键技术

介绍了基于Internet的机械设计资源网上共享服务系统,阐述了系统开发所需的工具及系统的功能设计、功能模块;论述了系统实现的关键技术——ASP技术和Web数据库技术。为设计人员进行远程设计带来了很大方便。     

基于ASP的大学外语等级考试网上报名系统的设计与实现

本文系统的介绍了基于ASP的大学外语等级考试网上报名系统的研制与开发。给出了系统的数据库的设计和主要功能模块的实现方法,并给出了部分重要的程序代码。     

“电工学”网上答疑系统的分析与设计

在比较了传统答疑方式与网上答疑系统的优缺点后,提出了一种基于ISP技术的"电工学"网上答疑系统的设计方案.本文主要探讨了此网上答疑系统的特点、功能及其设计,并介绍了相关技术.     

基于B/S架构的评卷系统设计研究

本文以当前日益兴起的无纸化考试为研究对象,结合B/S架构、ASP及数据库技术的特点,探讨基于网络的无纸化考试及评卷系统的实现过程,并对系统各主要功能模块进行了阐述,特别针对自动阅卷与人工评卷的方法进行了分析.     

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