浅谈网络安全技术

本文从网络安全的技术因素着手,以网络安全防御技术为出发点,提出网络安全防御技术,从防火墙技术、入侵检测技术和网络防病毒技术来阐述网络安全解决办法。     

浅析网络安全技术

本文介绍了网络安全技术的重要性和常见的网络安全加密技术。阐述了网络安全技术的特点,肯定了网络安全技术对人们生活、工作、商品贸易的重要性。     

网络安全技术的现状及发展趋势

文中论述了网络安全及网络安全技术的相关概念,对当前流行的网络安全技术:防火墙技术、入侵检测技术和防病毒技术作了较详细的介绍,对未来的网络安全技术作了展望.     

浅谈计算机网络安全防范

网络安全有许多＂别名＂,信息安全、信息网络安全、网络信息安全、网络安全威胁、网络安全攻防、网络安全服务和网络安全技术等都是在不同应用场合和不同用户对象中对网络安全的说法。网络安全包括一切解决或缓解计算机网络技术应用过程中存在的安全威胁的技术手段或管理手段,也包括这些安全威胁本身及相关的活动.网络安全的不同＂别名＂代表网络安全不同角度和不同层面的含义,网络安全威胁和网络安全技术是网络安全含义最基本的表现。     

电力系统计算机网络应用及系统安全浅析

要确保网络安全,一是需要多种网络安全技术结合,形成完整有效的网络安全防护体系。二是不能静态地看待网络安全问题,要关注网络安全、病毒的最新发展,不断地完善网络安全防护体系。三是要认识到仅靠网络安全技术构成的安全防护体系是不够的,还要健全和完善网络的安全管理制度,和形成技术和管理双管齐下,才能确保网络安全。     

企事业单位计算机网络安全探议

计算机的使用和网络安全是IT技术应用的焦点问题,对于企事业单位网络安全面临的危境进行剖析,提出相应的解决方法。除广大技术防范层面外,提高网络安全保障,必须进一步提升网络安全管理观念,加强网络安全技术监控,完善网络安全管理队伍建设,提高员工对网络安全的整体认识和防范意识。     

面向网络安全的分布式异构存储网络安全技术研究

由于传统的分布式异构存储网络安全技术,在进行分布式异构存储时,存储安全系数低,无法实现分布式异构存储网络安全。针对这一问题,进行面向网络安全的分布式异构存储网络安全技术研究。首先,提取分布式异构存储网络安全数据特征,再通过建立分布式异构存储网络安全矩阵,实现分布式异构存储。最后通过实验证明面向网络安全的分布式异构存储网络安全技术可以提高分布式异构存储网络安全的存储安全系数,确保分布式异构存储安全。     

基于主动防御的校园网安全体系研究

随着高校信息化的普及,如何在开放校园网络环境中保证安全性己经成为众多业内人士关心的问题。目前,网络安全技术的研究和开发已从单个网络安全产品发展到重点研究网络安全技术体系和网络安全管理平台上。本文重点论述了网络安全防御体系建立的过程和理论方法,对校园网结构进行优化,针对网络安全防御体系的各个组成部分,分析和研究可能采用的安全技术和安全产品。详细描述了网络安全防御体系建立的整个过程,并将可能的安全技术应用到校园网中。     

谈计算机网络的安全技术

随着计算机网络的发展与应用,网络的安全技术变得越来越重要。本文从网络安全技术具体实现原理上,介绍了数据加密技术、防火墙技术、网络安全扫描技术、网络入侵检测技术、黑客诱骗技术等网络安全技术。     

网络安全与防火墙技术

网络安全技术是一门涉及计算机科学、网络技术、通信技术、密码技术、信息安全技术、应用数学、数论、信息论等多学科的综合性学科。随着Internet的迅速发展,网络安全问题日益严重,网络安全技术也被人们重视起来。解决网络安全问题的重要手段就是防火墙技术。本文首先论述了网络防火墙,然后论述了网络防火墙的实现技术以及日后的发展趋势。     

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.     

Jane Eyre——A Feminist In The 19th Century

In the 19th century the society was controlled by men, and women were just appendants of them, they had not any rights and freedom. But Jane was an exception, she showed some characteristics of early feminist. Jane showed her characteristics of feminism in three aspects: rebellion, equality, and independence. These characteristics were helpful to her success, and feminism is the only way out for women of that time.     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of