计算机网络安全策略探讨

网络信息的飞速发展给人类社会带来巨大的推动与冲击,同时也产生了网络系统安全问题。计算机网络的安全问题越来越受到人们的重视,本文简要的分析了计算机网络存在的安全隐患,并探讨了计算机网络的几种安全防范措施。总的来说,网络安全不仅仅是技术问题,同时也是一个安全管理问题。     

浅议计算机网络信息安全监控系统的设计

随着网络技术的不断发展,Internet正在人们的生活中占据越来截止重要的地位。近几年来,研究人员在认证和授权,网络访问控制,防火墙,以及计算机系统安全管理、网络信息安全管理等方面做了许多研究工作,并取得了很多研究成果。网络监控是许多网络用户急需解决的问题。本文从Internet的安全问题的提出着手,分析了常见网络信息安全问题,得出了网络安全监控系统的设计的思路。     

网络合同安全保护的法律思考

介绍了网络合同的法律问题及需要特别强调的一些原则,指出对网络合同安全进行保护,一方面应加强针对网络合同安全保护方面的立法建设和执法力度;另一方面网络合同的当事人亦应重视网络合同安全保护问题。     

网络虚拟社会中非常规安全问题与社会计算方法

网络虚拟社会中的非常规安全问题已成为威胁国家安全和社会稳定的重大问题。本文论述了近年来网络虚拟社会环境的变迁,以及由此引发的网络虚拟社会中的非常规安全问题,讨论了中国政府对网络虚拟社会的认识与态度的转变。最后,回顾了2004年以来王飞跃研究团队对数字网络化社会所带来的国家与社会安全内涵改变的思考及其科学应对方法的研究历程,认为基于ACP的社会计算方法是研究网络虚拟社会中非常规安全问题的一种有效途径,未来发展与应用前景广阔。     

计算机网络的安全管理

论述了计算机网络安全问题的重要性 ,指出了威胁计算机网络安全的因素 ,并通过对计算机网络系统所存在的安全问题和计算机网络安全管理现状的分析 ,提出了加强计算机网络安全管理的一些措施     

多媒体网络教室安全问题的探讨

随着计算机和网络技术的飞速发展,多媒体网络技术在教学领域得到广泛的应用。本文分析了多媒体网络教室面临的各种安全问题,阐述了相应的安全防范策略,并通过一种多媒体网络教室架构详细分析了多媒体网络教室安全问题的解决方法,以保障教学网络的安全运行。     

基于网络行为学的Mobile Ad hoc安全问题初探

首先对MobileAdhoc网络以及网络行为学进行了简述 ,然后阐述了MobileAdhoc网络所面临的主要安全问题 ,最后从网络行为学角度对MobileAdhoc安全问题进行了研究和探讨 ,并提出了一些构想     

网络终端安全管理的实现

随着网络技术应用的不断深入,信息安全发展也进入到一个全新的时代。网络终端安全作为网络的最基本安全防护策略之一,在网络安全防护中具有不可替代的作用。如果客户的PC终端始终能升级最新的系统补丁、最新病毒库版本,并养成良好的信息安全意识和习惯,网络的安全问题就解决了90%。本文就网络终端的安全防护进行全面分析,并给出相应的解决办法,有效地保护了整个内网的安全,提高了信息安全防护水平,对解决目前网络安全防护问题具有一定的参考价值。     

PKI/PMI与电子商务安全

随着网络的飞速发展,网络与信息系统的安全与保密问题越来越重要,电子商务安全问题引起了人们的密切关注。     

网络数据库安全分析与防范

本文介绍了网络数据库的安全问题,简单分析了网络数据库工作过程中可能出现的安全问题,提出了一些重要的防范措施。     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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-