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1.
夏军 《电子科技导报》2011,(7):29-30,34
20世纪90年代以来,随着互联网的发展,电子商务也在迅速崛起。电子信息技术、网络经济已经进入到工业、农业和金融服务等各种行业。保险电子商务作为一种新兴的保险业营销渠道和服务方式,以其低成本、大信息量、传送即时和反馈、服务的连续性等特点,正在被越来越多国家的保险公司和消费者认可和接受。本文阐述了现阶段我国保险电子商务的发展现状与制约因素,并为我国的保险行业电子商务的发展提供一些建议。  相似文献   

2.
90年代以来,以数字化、网络化为特征的信息浪潮把人类带进了一个崭新的网络经济(新经济)时代,而电子是网络经济的基础和主要表现形式。虽然目前世界经济正在经历严峻的考验,但是电信行业仍在不断发展,网络经济的前景十分美好。在此基础上,介绍了全球电子商务的发展现状,重点分析了中国电子商务的发展,指出了中国电子商务发展中亟待解决的问题。  相似文献   

3.
继续领跑     
只有当传统企业和网络企业这两股力量都奔向同一个山顶时,这样的电子商务世界才更精彩,真正的电子商务时代也才会更快一些到来.作为中国IT行业的领跑者联想义不容辞地承担起探索中国电子商务发展模式的责任.7月本刊专访了联想电脑总裁杨元庆,探讨其在网络经济中继续领跑的方向.……  相似文献   

4.
以电子商务为代表的网络经济是知识经济的重要组成部分。众多国家和地区将发展电子商务作为发展经济和提升竞争力的重要手段之一。我国电子商务现处于起步阶段,市场发展空间很大。电子商务活动中重要的一种应用就是B2B的应用。B2B针对企业用户,交易额度大,需要采用高可靠性、高安全级别加  相似文献   

5.
徐凤霞 《信息技术》2011,(5):199-201
随着互联网技术的迅猛发展和普及完善,进入了一个以电子商务为代表的网络经济时代。在这样一个崭新的环境中,企业的财务管理无论是对象、内容、数据载体、核算方式、记账手段、报表形式等等都发生了巨大的变化。互联网技术既给企业管理带来了前所未有的便利和机遇,也带来许多挑战与风险。文章从互联网的特点出发,分析了网络经济条件下财务管理的优势和特点,指出了存在的风险和隐患,探讨了做好网络经济条件下财务管理工作的对策和建议。  相似文献   

6.
电子商务业务以低成本、方便快捷受到广大消费者青睐,目前电子商务呈井喷式发展,新兴的电子商务企业层出不穷,很多传统企业纷纷转向电子商务行业。电子商务行业发展究竟如何?高职院校应当如何培养受企业欢迎的电子商务人才,我们进行了广泛的调研,并对高职院校电子商务专业发展提出相应建议。  相似文献   

7.
网络经济的发展,特别是作为网络经济核心内容之一的电子商务的发展,意味着企业在战略思想、管理理念、运行方式、组织结构等各个方面的革命性变革。正是从这个意义上,我们说网络经济对现代企业的生存与发展,既是一种机遇,也是一种挑战。  相似文献   

8.
这几年我国的电子商务行业蓬勃发展,电子商务的快速发展带动了很多行业共同发展,物流行业就是其中的典型行业。我国的物流行业起步比较晚,在各方面存在很多的不足,虽然规模已经非常庞大,但是在管理、服务方面仍然有待提高。文章通过研究电子商务背景下物流在管理水平方面的提升,以促进物流行业的进一步发展,同时以此推动我国电子商务的快速进步。  相似文献   

9.
随着以互联网技术为主要特征的信息时代的不断深入,网络经济开始在经济领域和意识形态领域引发_系列不容忽视的变革,它不光极大地影响着人们生活的方方面面,也对现代企业的管理方式提出了新的要求和挑战。本文首先简要介绍了网络经济时代的内涵和牦点,然后论述了网络经济时代对企业产生的影响,最后就如何在网络经济时代背景下做好企业管理创新提出了几点对策和建议。  相似文献   

10.
黄伟 《电子世界》2014,(6):275-275
在网络应用不断广泛的背景下,网络电子商务逐渐的兴起,国内随着网络经济的发展,电子商务也得到较大的普及和推广。网上支付作为电子商务的一个较为重要环节,对于网民在电子商务中安全顺利的运作起到非常重要的作用,当前网上支付出现一些安全及技术问题,需要不断采取对策来解决出现的问题,才能保证安全可靠的电子商务环境。  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.
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   

17.
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   

18.
The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.  相似文献   

19.
Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.  相似文献   

20.
An insert layer structure organic electroluminescent device(OLED) based on a new luminescent material (Zn(salen)) is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn(salen)/Liq/LiF/A1/CuPc/NPD/Zn(salen)/Liq/LiF/A1. Effective insert electrode layers comprising LiF(1nm)/Al(5 nm) are used as a single semitransparent mirror, and bilayer cathode LiF(1 nm)/A1(100 nm) is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.  相似文献   

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