基于角色权限管理的B/S与C/S模式相结合的教务管理系统安全体系的研究与设计

阐述了目前高校教务管理系统存在的各种安全问题,综合分析各种安全问题出现的原因,论证了建立教务管理系统安全体系的必要性.分析目前比较常用的B/S模式与C/S模式的优缺点,并针对高校教务管理系统的特殊性,提出基于B/S与C/S模式相结合的高校教务管理系统模型,弥补二者单独应用所存在的缺点与不足.同时,为了避免由于服务器配置不当,或者Web设计代码存在缺陷而使系统处于风险中,又在该模型基础上引入角色权限管理的机制,把教务管理的工作结构通过角色映射到系统中,实现系统权限与角色对应,而不是用户本身,最终设计了基于RBAC的B/S与C/S模式相结合的教务管理系统安全体系模型,从而使教务管理系统中信息的安全性得到了保障,同时也保证了系统安全、稳定、快捷的运行.     

综合教务管理信息系统的开发

教务教学管理已经实现了计算机信息管理,但都处于单机管理状态,仅供本部门使用,无法实现信息的高效共享,需要开发出一整套教务管理信息系统进行综合教务管理.新的教务管理信息系统采用了当前流行的C/S结构和Internet网络技术,因而就可在多地域、任意时间段以不同身份来访问教务系统中的数据,大大加强了系统数据共享的能力.新系统的使用,为促进学校教务管理的科学化、规范化、信息化、减员增效、保障学分制的顺利实行提供了有力的支持.     

洪恩数字校园管理系统

洪恩数字校园网络系统是由多种功能组件组成的校园管理软件。该系统包括:教务教学组件、学生管理组件、师资管理组件、通讯办公群件、电子备课授课、图书管理组件等子系统。教务教学组件解决繁重的教务管理工作是洪思数字校园教务管理功能组件的核心。它主要包括:基础信息管理、学籍管理、考试管理、成绩管理、排课系统等内容。实现了教务办公自动化。在教务管理组件中的学籍管理(模块)提供了对学籍信息、学籍变动、毕业结业、中考高考等管理信息的记录和查寻等功能。考试管理(模块)显示     

基于ASP.NET技术的教务办公自动化系统研究与实现

基于ASP.NET技术开发的教务办公自动化系统,具有信息发布、教学计划管理、考务管理、成绩管理、教材管理等功能,实现了教务办公的自动化和网络化,提高了工作效率,文章给出了系统分析过程和实现的关键技术,对促进高校信息化建设有借鉴作用。     

高校教务信息管理系统的研究和实践

学院招生规模扩大后,为解决教务管理工作面临的巨大压力,我院引进新的教务信息管理系统,通过不断地修改、探讨,逐步完善了教务信息管理系统。该系统采用C/S和B/S混合模式,主要包括系统数据管理、教学计划管理、课表管理、成绩管理、考试管理、学籍管理、毕业生管理等。此外,教务信息网站支持教师网上成绩输入,学生网上选课系统、网上成绩查询系统。该系统的有效运行,使得教学管理工作实现了科学性、规范性、高效性。     

基于PKI的高校安全教务管理研究

随着Internet技术的快速发展,基于B/S结构的网上教务管理系统为学院教务工作的办公自动化注入了新的活力.但在使用过程中非法监听、非法修改、事后否认等行为逐渐成为威胁系统安全亟待解决的问题.本文就如何将DES及RSA加密算法、公钥基础设施(PKI)及数字签名技术应用于网上教务管理系统以实现安全教务管理进行研究.通过实践证明利用加密、数字签名等技术构建的网上教务管理系统,可以实现安全的网上数据提交、存储、传输及使用,有效保证了信息的保密性,具有一定的使用价值.     

基于数据库的教务信息化管理的开发和应用

随着计算机及其应用软件的发展,教务信息化管理能够减轻学校和教务管理部门的压力,已经越来越得到重视。教务管理的对象主要是大批量的信息,例如:学生成绩、师生的个人信息、课程信息等等,这就需要一个能够对大批量的信息进行有效管理的工具。在计算机系统中,数据库就是这样一个工具。基于数据库的教务信息化管理是借助数据库创建、数据库访问、数据库存储和界面开发等技术在计算机上建立教务管理的数据库应用系统。     

教务管理信息系统的设计与开发

给出教务管理信息系统设计与开发的技术方案.运用统一建模语言(UML)对系统进行分析和设计,系统架构采用C/S和B/S相结合的混合模式,数据库采用SQL Server,开发语言采用ASP.Net.系统功能涵盖现有教务管理的主要工作,对推进高校教务管理信息化、规范化建设进程具有一定的意义.     

基于集群的多架构教务管理系统设计与实践

针对目前高校教务管理系统平台现状,以及多数高校教学管理中存在多校区、多模式等问题,提出了用集群系统解决教务管理系统硬件平台的方案,将整个教务应用服务集成为一个系统,所有应用服务节点所需的数据均由唯一的数据库统一提供,整个平台进行分类管理,分别由不同的节点或节点集群提供不同的教务管理应用,有效解决了教务系统的复杂多变、各种数据不能够唯一存在和实时变化等难点,初步建立了适合普通高校教务管理需求的软件硬件平台.     

B/S模式下学生自助学籍服务平台的设计与应用

为提高高校学籍管理服务效率,东华大学结合现有的教务管理系统、校园一卡通系统以及云打印技术,采用B/S模式架构自主研发了自助教务服务系统,实现一套学生自助查询打印学籍信息的平台.该系统包括自助打印终端、管理控制端、数据接口等模块,学生通过登录教务网账户或刷取一卡通即可登录打印终端,完成自助打印,从而满足学生学业需求,提高教师管理工作效率,实现高校教务管理工作的数字化、信息化、现代化.     

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