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1.
张晓海 《移动信息》2020,(2):00101-00102
当前网络技术的应用在给人们带来巨大便利的同时,也让人们处在网络安全隐患威胁当中。尤其是随着计算机技术和网络技术应用范围的不断扩大,网络安全方面存在的漏洞越来越多。在大数据时代,为了满足人们从互联网上快速、便捷地获取信息的需求但不被恶意应用,反爬虫系统能够在网络安全维护方面起到十分积极的作用。鉴于此,对大数据时代的数据爬取问题进行了分析,并对如何解决恶意爬虫进行了分析和探讨。  相似文献   

2.
马铭艳 《移动信息》2023,45(8):113-115
网络安全分析对互联网发展有着深远的影响。随着大数据技术的持续发展,如何将大数据技术融入实际分析过程中,是每位工作人员都需要思考的问题。大数据技术作为一种新型技术,可以切实提高网络安全分析的质量及效率。因此,工作人员需要加大分析力度,了解大数据技术的应用要点,将其与网络安全分析工作相结合,做好安全防护,使其分析得更加精准、可靠,切实提高网络安全分析效能。文中以大数据技术为例,对其在网络安全分析中的应用开展了深入分析。  相似文献   

3.
本文对网络安全分析中的大数据技术应用展开研究,研究结果显示,在大数据技术视野下开展网络安全分析工作,可使网络安全分析更具全面性、准确性、有效性及针对性,进而使得网络安全防护效率大大提升。  相似文献   

4.
新时期网络技术在各个领域得到了广泛的运用,极大促进了社会发展的现代化,方便了人们的生活。文章就新形势下的网络安全问题进行剖析,探究了网络安全环境下大数据技术的价值,对基于大数据技术的网络安全平台建设进行探讨,进而分析了大数据技术在网络安全技术中的运用。  相似文献   

5.
随着网络规模和应用的场景逐渐扩大化,网络安全威胁也在随着规模的扩大而不断增加,单一的网络防护技术,已经不能满足现在的网络安全的要求,网络动态安全管制可以从整体上动态的反映网络安全现状,并且对于网络安全问题发生的趋势进行预测,和大数据相关技术的发展正为其提供了数据上面的支持,为大规模的网络安全动态感知研究突破创造的机遇,文章将介绍网络安全态势概念及技术基础,对于利用大数据展开与多元日志网络安全动态研究进行探讨。  相似文献   

6.
随着光线宽带、移动通信技术的快速发展和改进,促进了互联网在金融证券、电子商务、电子政务等领域的应用,积累了海量的数据资源,使得人们进入到了大数据时代.互联网在为人们带来便利的同时,也带来了潜在的安全威胁.基于大数据挖掘技术构建网络安全入侵检测系统,可以深度分析数据包,监控互联网运行状态,提高网络安全入侵检测的效果.  相似文献   

7.
大数据时代的来临让我们了解到数据资源的重要性的同时,对网络环境中的数据与信息安全提出了新的要求。本文从大数据时代背景出发,分析目前大数据环境下网络安全的基本现状的基础上,首先明确了加强大数据时代网络安全的重要性,然后梳理了大数据环境下切实可用的网络安全技术,并结合原有的虚拟化网络安全架构构建新型大数据环境下网络安全SDN架构,最后从运行机制的的角度提出了网络安全建设的三大机制。  相似文献   

8.
肖福明  潘涛 《电子质量》2023,(9):103-106
随着互联网络时代的飞速发展,网络安全问题日益受到重视,现实网络信息技术也面临诸多挑战。网络安全是国家安全和社会安全的基础,面对严峻的网络安全态势,实时把握网络安全数据已成为洞悉网络情况、分析网络异常和评估网络环境等要素的关键纽带。针对当前日益凸显的网络安全隐患和缺陷,就网络安全分析的含义和基于大数据技术的网路安全平台搭建等研究方向进行了深入探讨,以期望达到提高网络安全性的目的。首先,通过大数据Hadoop技术以及数据的采集、存储和分析技术加持,构建大数据网络安全分析平台;然后,利用大数据技术,来实现在数据分析中对多种数据的处理,从而达到建立基本网络技术体系的安全性防护目的;最后,提出了搭建基于大数据技术的网络安全平台的分析考虑。  相似文献   

9.
<正>随着大数据时代的到来,数据治理的重要性和网络安全的威胁也越来越凸显。本文从大数据背景下数据治理的网络安全问题入手,分析了网络安全风险、威胁和漏洞,探讨了数据治理的网络安全措施、管理实践和技术支撑。通过对某互联网金融企业数据治理的网络安全措施实效性的评估,得出该企业采取的网络安全措施较为完备,实际应用效果良好的结论。本文旨在提醒企业和个人重视数据治理和网络安全问题,加强网络安全管理和技术支撑,保障数据安全,维护企业和用户的利益。  相似文献   

10.
随着计算机技术与通信技术的飞速发展,各种数据流量也随之急剧增加,这给信令数据的采集、存储、分析带来了巨大挑战.在传统信令监测系统的基础上结合大数据特征,设计了该信令监测系统建设方案,讨论了该方案的关键技术和功能架构,详细介绍了该方案在网络优化、业务经营、网络安全三方面的应用,为大数据时代下实现信令监测、提高网络安全,提供了理论支撑和实践基础.  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.
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   

13.
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   

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.
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   

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.
Waveguide multilayer optical card (WMOC) is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling & processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic (VB) language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.  相似文献   

18.
In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal (200) (2d = 0.4027 nm) is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line(w), the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line(x), the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines(y), the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line(z) in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line(q) in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution(λ/△ 2) is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.  相似文献   

19.
High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET > PDMAT > TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.  相似文献   

20.
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   

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