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1.
目前,现代通信技术出现以及产业经济的迅速发展,进一步推动了网络技术的快速发展。这一重大变革促进人类文明历史进程开启了新的篇章。自网络时代开始,人们逐渐了解计算机通讯安全等相关问题,有利于信息化产业与安全防护问题之间相互促进,相互发展。文章针对现今现代通信网络安全防护技术问题,进行了深入探讨。  相似文献   

2.
随着信息化建设的高速发展,计算机网络通信技术逐渐改变了我们的生活方式和生活节奏,通过网络通信技术进行资源共享,为我们日常的信息交流和社会活动的开展提供了很大便利,与此同时,随着网络通信技术的发展,网络通信安全隐患也逐渐凸显出来.网络通信安全关系到国防信息和公民个人信息的安全,必须加以重视.本文首先对计算机网络通信进行了简单介绍,并结合目前计算机网络通信存在的安全隐患,详细地探讨了计算机网络通信安全的防护措施.  相似文献   

3.
在我国社会经济快速发展与科学技术迅猛进步的今天,计算机与网络的普及率也在不断上升,使人类的联系更加快捷也更为紧密,与此同时,网络通信安全与计算机病毒入侵等问题也成为现代社会需要应对的棘手问题,个人信息的泄露、病毒对电脑的入侵都为计算机网络安全的发展产生了不利影响,因此,如何提高网络通信安全与计算机病毒防护技术,是我们需要应对的问题.本文就网络通信安全与计算机病毒防护的研究进行了简单的探讨.  相似文献   

4.
随着社会经济的不断发展以及各种科技的发展,计算机通信网络技术也得到了非常广泛的应用,当今时代我们已经步入信息社会,计算机网络逐渐与人们的生产生活融为一体,我们对网络已经产生了非常强的依赖性。但我们必须认识到,计算机网络通信并不是没有缺陷的,它往往存在很多安全问题,因此在日常生产生活中应用网络通信时,一定要采取有效的安全防护技术。本文结合笔者实际研究,提出了几点常用的计算机网络通信安全防护技术。  相似文献   

5.
张志仁 《移动信息》2023,45(6):201-203
随着世界信息化进程的推进,各种先进的技术被广泛运用于各行各业,这给计算机互联网的发展提供了巨大的机会,但随着信息安全问题的不断增加,其也不断威胁着整个网络系统的健康发展。要实现对信息系统的保护,就需要强化安全防护,并通过相应的技术手段,营造一个良好的信息安全生态系统,以保障系统的稳定和安全。文中首先分析了信息化时代的计算机网络安全问题,再分析了计算机网络安全防护技术,并提出了相应的安全防护对策,旨在提升计算机网络安全防护成效,确保网络信息传输、存储和使用安全。  相似文献   

6.
随着我国计算机设备及网络技术的不断发展和普及,人们的生活质量和工作效率也在不断提高;但随着网络通信技术的深入应用,很多的安全问题也逐渐显现出来,对人们的生命财产安全造成巨大威胁,所以加强计算机的病毒防护是非常有必要的;对此本文结合网络通信现状,就网络通信安全与计算机病毒防护进行分析,并提出相关的见解,希望可以促进网络信息技术的健康发展。  相似文献   

7.
随着社会经济的不断发展以及各种科技的发展,计算机通信网络技术也得到了非常广泛的应用,当今时代我们已经步入信息社会,计算机网络逐渐与人们的生产生活融为一体,我们对网络已经产生了非常强的依赖性.但我们必须认识到,计算机网络通信并不是没有缺陷的,它往往存在很多安全问题,因此在日常生产生活中应用网络通信时,一定要采取有效的安全防护技术.本文结合笔者实际研究,提出了几点常用的计算机网络通信安全防护技术.  相似文献   

8.
伴随着计算机网络通信技术的快速发展,各类威胁计算机网络通信安全的问题也层出不穷,为了解决这些问题,人们不断寻求和创新计算机网络通信的安全防护策略和措施。数据加密技术作为一门保护数据完整性、保密性和有效性的技术,被广泛的运用。本文对基本的数据加密方法进行分析,介绍了计算机网络通信中常用的数据加密技术及其优缺点。  相似文献   

9.
刘君涛 《通讯世界》2016,(19):104-105
随着信息技术的飞速发展,计算机通信技术广泛地应用于管道生产的各个方面,为生产管理带来更多的便利,然而,如何维护计算机网络通信的安全问题,引起人们的广泛地关注.本文主要研究计算机通信网络安全现状,相应的提出计算机通信网络安全与防护策略,旨在保障计算机网络通信的安全性.  相似文献   

10.
随着各行各业的信息化和高技术要求,计算机普及程度和速度发展迅速,进而随之产生网络信息安全和通讯安全问题,这就要求计算机用户能够熟知基本的计算机网络维护技术。本文以实际原则研究为基础,致力于向广大计算机用户介绍和阐述关于计算机通讯和网络安全维护技术。  相似文献   

11.
DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.  相似文献   

12.
From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.  相似文献   

13.
The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.  相似文献   

14.
The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.  相似文献   

15.
Today, micro-system technology and the development of new MEMS (Micro-Electro-Mechanical Systems) are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.  相似文献   

16.
This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel's.  相似文献   

17.
A new quantum protocol to teleport an arbitrary unknown N-qubit entangled state from a sender to a fixed receiver under M controllers(M < N) is proposed. The quantum resources required are M non-maximally entangled Greenberger-Home-Zeilinger (GHZ) state and N-M non-maximally entangled Einstein-Podolsky-Rosen (EPR) pairs. The sender performs N generalized Bell-state measurements on the 2N particles. Controllers take M single-particle measurement along x-axis, and the receiver needs to introduce one auxiliary two-level particle to extract quantum information probabilistically with the fidelity unit if controllers cooperate with it.  相似文献   

18.
A continuous-wave (CW) 457 nm blue laser operating at the power of 4.2 W is demonstrated by using a fiber coupled laser diode module pumped Nd: YVO4 and using LBO as the intra-cavity SHG crystal With the optimization of laser cavity and crystal parameters, the laser operates at a very high efficiency. When the pumping power is about 31 W, the output at 457nm reaches 4.2 W, and the optical to optical conversion efficiency is about 13.5% accordingly. The stability of the out putpower is better than 1.2% for 8 h continuously working.  相似文献   

19.
It is well known that adding more antennas at the transmitter or at the receiver may offer larger channel capacity in the multiple-input multiple-output(MIMO) communication systems. In this letter, a simple proof is presented for the fact that the channel capacity increases with an increase in the number of receiving antennas. The proof is based on the famous capacity formula of Foschini and Gans with matrix theory.  相似文献   

20.
Call for Papers     
正Wireless Body-area Networks The last decade has witnessed the convergence of three giant worlds:electronics,computer science and telecommunications.The next decade should follow this convergence in most of our activities with the generalization of sensor networks.In particular with the progress in medicine,people live longer and the aging of population will push the development of wireless personal networks  相似文献   

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