大数据时代电信运营商的机遇

移动互联网的兴起加速大数据时代到来,电信运营商面临重大机遇。文章在综述大数据时代电信运营商所面临主要机遇的基础上,深入剖析电信运营商在大数据应用方面的比较优势,概述电信运营商具备的独特数据资源和掌握的核心技术能力,提出以云计算为支撑、以智能普适服务为目标、面向电信运营商的大数据技术引入的战略路线图,并就电信运营商引入大数据技术的具体策略、构建大数据应用的最佳实践提出了一系列建设性意见。     

电信运营商对大数据的应用

在大数据的背景下,电信运营商面临机遇和挑战共同存在的情况.在大数据分析和应用逐渐被互联网淘汰的趋势下,电信运营商只有在有限的时间奋勇直追,才能避免导致成为管道的尴尬,确实转型成为综合性信息提供商.本文对电信运营商在大数据下的应用意义和存在的问题进行了分析,提出了具有针对性的意见.     

大数据时代电信运营商如何重构转型竞争力

通过介绍大数据的概念,详细分析了在大数据时代电信运营商面临的机遇和挑战以及国内外电信运营商大数据运营状况,探讨了电信运营商的大数据运营模式,并指出电信运曹商凭籍自身优势,需要加速实现转型战略落地,从而成为大数据时代的赢家。     

电信运营商大数据应用典型案例分析

移动互联网时代,云计算、物联网、智能终端等新技术新应用不断涌现,移动互联网的迅猛发展给电信运营商带来流量收益的同时,也带来了新的机遇和挑战。文章结合大数据的技术现状以及电信运营商的数据特点,分析电信运营商大数据发展遇到的问题,探讨电信运营商应用大数据的策略,最后提出一种适合电信运营商的大数据平台架构和方案。     

电信运营商省级大数据平台建设方案探讨

大数据时代的到来,让传统电信运营商面临不小机遇。本文总结当前运营商 IT 支撑平台建设和企业数据分布情况,分析国内运营商大数据发展所处的阶段;给出大数据平台建设架构和技术方案,并对电信运营商大数据平台建设方案中的关键点进行研究。     

电信运营商省级大数据平台建设方案

大数据时代的到来,让传统电信运营商面临不小机遇.本文总结当前运营商IT支撑平台建设和企业数据分布情况,分析国内运营商大数据发展所处的阶段;给出大数据平台建设架构和技术方案,并对电信运营商大数据平台建设方案中的关键点进行研究.     

通信网络大数据应用新模式研究

4G高速网络时代,电信运营商的数据业务爆炸式增长产生了海量数据.用大数据视角挖掘业务数据背后蕴藏的巨大价值、盘活企业的海量数据资产,为电信运营商应对数据业务飞速发展提供了新思路.本文阐述了大数据的定义和发展趋势,依据大数据价值链层次构成理论分析了电信运营商的大数据优势和面临的挑战,介绍了全球典型电信运营商的大数据试用情况,并结合大数据处理基本流程,从精细化运营和商业模式创新两个方面对电信运营商在4G时代的大数据应用进行了探讨.     

运营商大数据安全防护技术研究

大数据给电信运营商带来巨大发展机遇的同时,也带来了各类型的安全隐患。保护大数据安全成为电信运营商大数据业务发展的关键。通过分析电信运营商大数据安全现状,总结国内运营商的大数据安全防护方案与技术。     

运营商勇闯“大数据” 机遇大于挑战

大数据背景下,电信运营商机遇和挑战并存,但更多的是机遇。在大数据技术研究和应用已被互联网行业抛离的趋势下,运营商必须紧抓有限的时间窗口奋起直追,避免彻底沦为管道的尴尬,真正转型为综合信息服务提供商。近年来,大数据所带来的挑战推动了计算技术的快速发展,催生了分布式并行处理平台Hadoop、软硬件一体化数据库服务器Exadata等一批新产品。对于电信运营商这样的大型企业而言,需要思考如何应用这些新技术,解决在大数据时代背景下     

大数据背景下运营商发展策略探讨

随着互联网业务和应用的迅猛发展以及移动互联网的爆炸式增长,大数据技术的出现与发展为电信运营商深挖数据提供了新的技术手段,同时也为其更好地服务客户提供了新的机遇。大数据将成为运营商开展移动互联网业务的核心优势资产。本文结合大数据的技术现状以及运营商的的数据特点,分析运营商在大数据应用方面的优势,并提出了运营商的数据获取原则以及策略。     

Development of the readout system for waveguide multilayer optical card

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.     

Nanoimprint Lithography -A Next Generation High Volume Lithography Technique

IntroductionNanoimprint Lithography is a well-acknowl-edged low cost, high resolution, large area pattern-ing process. It includes the most promising methods,high-pressure hot embossing lithography (HEL) [2],UV-cured imprinting (UV-NIL) [3] and micro contactprinting (m-CP, MCP) [4]. Curing of the imprintedstructures is either done by subsequent UV-lightexposure in the case of UV-NIL or by cooling downbelow the glass transition temperature of the ther-moplastic material in case of HEL…     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

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.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

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.     

Influence of PVK ： NPB hole transporting layer on the characteristics of organic light-emitting devices

A doping system consisting of NPB and PVK is employed as a composite hole transporting layer （CHTL）. By adjusting the component ratio of the doping system, a series of devices with different concentration proportion of PVK ： NPB are constracted. The result shows that doping concentration of NPB enhances the competence of hole transporting ability, and modifies the recombination region of charge as well as affects the surface morphology of doped film. Optimum device with a maximum brightness of 7852 cd/m^2 and a power efficiency of 1.75 lm/W has been obtained by choosing a concentration proportion of PVK ： NPB at 1：3.     

New insert layer structure OLEDs

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.     

Analysis of error performance on Turbo coded FDPIM

Due to variable symbol length of digital pulse interval modulation（DPIM）, it is difficult to analyze the error performances of Turbo coded DPIM. To solve this problem, a fixed-length digital pulse interval modulation（FDPIM） method is provided. The FDPIM modulation structure is introduced. The packet error rates of uncoded FDPIM are analyzed and compared with that of DPIM. Bit error rates of Turbo coded FDPIM are simulated based on three kinds of analytical models under weak turbulence channel. The results show that packet error rate of uncoded FDPIM is inferior to that of uncoded DPIM. However, FDPIM is easy to be implemented and easy to be combined, with Turbo code for soft-decision because of its fixed length. Besides, the introduction of Turbo code in this modulation can decrease the average power about 10 dBm, which means that it can improve the error performance of the system effectively.     

A method for calculating the center position of collimated light

It is a key problem to accurately calculate beam spots＇ center of measuring the warp by using a collimated laser. A new method, named double geometrical center method （DGCM）, is put forward for the first time. In this method, a plane wave perpendicularly irradiates an aperture stop, and a charge couple device （CCD） is employed to receive the diffraction-beam spots, then the geometrical centers of the fast and the second diffraction-beam spots are calculated respectively, and their mean value is regarded as the center of datum beam. In face of such adverse instances as laser intension distributing defectively, part of the image being saturated, this method can still work well. What＇s more, this method can detect whether an unacceptable error exits in the courses of image receiving, processing and calculating. The experimental results indicate the precision of this method is high.     

Cost-effective test solutions for smart card and other integrated flash applications

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.     

An improved parallel thinning algorithm with two subiterations

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.