一种对等网络的通信分析与实时应用

讨论了Ｎｏｖｅｌｌ Ｄｏｓ７点对点对等网络的特点，对网络中点通信速率进行了估算，结果表明Ｎｏｖｅｌｌ Ｄｏｓ７特别适合中，小型实时局域网系统。介绍了该对等网络的一个实时应用－－县级中、小型电网调度自动化系统，该系统的设计和开发兼顾了低成本和满足用户基本需求这两个基本因素，使系统具有良好的性能价格比，具有工作可靠，配置灵活，使用方便等特点。     

一种对等网络的通信分析与实时应用

讨论了ＮｏｖｅｌＤｏｓ７点对点对等网络的特点，对网络中各站点通信速率进行了估算，结果表明Ｎｏｖ－ｅｌＤｏｓ７特别适合中、小型实时局域网系统．介绍了该对等网络的一个实时应用——县级中、小型电网调度自动化系统，该系统的设计和开发兼顾了低成本和满足用户基本需求这两个基本因素，使系统具有良好的性能价格比，具有工作可靠、配置灵活、使用方便等特点．     

智能+技术背景下基于聚类算法的自动化审计研究

审计工作涉及大量的物资采购、财务以及税务数据，在人工模式下存在效率低下、成本较高的缺点，可将算法引入其中，从而实现自动化审计。具体的实施方法为收集存储原始业务数据，开展数据抽取、清洗和转换，利用聚类算法构建审计模型，通过机器学习训练、改进模型，直至其达到成熟状态。研究过程中依托K-means算法实现聚类，建立审计指标，收集企业的实际数据，开展自动化处理。结果显示：该算法模型能够实现指标重要性排序，并输出量化的审计结果。     

高校内部审计的现状及对策

高校应健全内部审计监督制度，加强对内部基础工作规范的审计，增强审计风险意识、服务意识和创新意识，加快内部审计工作自动化、网络化的建设，积极改善并营造良好的内部审计工作环境，实现内部审计工作由传统监督审计向现代管理审计的转型。为促进学校完善管理，规避办学风险，降低办学成本，提高办学效益，实现办学目标，提供最优质的内部审计服务。     

基于校园网的视频点播系统的设计与实现

本系统充分利用校园网宽带优势,将多媒体资源利用在线点播的形式提供给校园网用户,方便了终端用户的使用;同时为了减轻网络管理员的管理负担,最大限度的自动化了多媒体资源的发布、管理、统计和审计。     

杨村煤矿物资管理信息系统研究

运用目前较为流行的ＦｏｘＰｒｏｆｏｒＷｉｎｄｏｗｓ开发的杨村煤矿物资管理信息系统，该系统可实现整个煤矿物资管理的自动化，使计划员、统计员及仓库管理员从繁琐的业务中解脱出来，把主要精力投入到管理上来。文中主要阐述系统总体设计及现场应用效果。     

信息化环境下内部审计如何开展风险评估与控制

21世纪是信息技术的。随着生产的自动化、贸易中的商务的普及、财务软件的广泛使用、以及支付手段的多样化，审计信息化将是21世纪必然趋势。本文深入分析目前我国内部审计风险的成因、评估及控制，并对内部审计风险提出了若干建议。     

DBMS安全审计功能测试用例生成方法

数据库管理系统（DBMS）安全审计功能的符合性测试要求测评人员设计有效覆盖安全功能规范的测试用例。本文提出一种基于安全审计规范使用标记迁移系统（LTS）建立形式化模型的DBMS安全审计测试用例自动化生成方法。该方法根据数据库分级评估的安全目标建立审计功能组件的LTS模型,再依据LTS模型启发式路径搜索算法从模型的路径中...     

Visual Basic4.0版本中的通讯问题研究

Ｖｉｓｕａｌ Ｂａｓｉｃ是深受程序员欢迎的一种编程软件,作者在利用ＶＢ的通讯控件进行通信口管理时,发现有数据丢失现象。本文分析了造成数据丢失的原因,提出了解决问题的方法,并在变电站计算机综合自动化控制系统中得到了应用。     

对楼宇自动化系统分析

简要介绍了楼字自动化系统，分析了楼宇自动化系统的组成、结构和主要特征。简述了楼宇自动化系统的主要设计步骤，论述了当前楼宇自动化系统及智能建筑的发展趋势。     

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.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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