数据综合网管系统的设计与实现

本文对数据网络运行的实际特点进行了具体分析,并从系统软件架构、总体结构设计、系统结构配置等几个方面给出了数据综合网管系统的总体设计方案.在系统实现部分,本文讨论了系统需求、逻辑结构和实现功能.通过本文研究,明确了数据综合网管系统建设的总体思想和实现方法,为电信运营商建设综合网管系统提供实际有效的参考.     

本地网网管系统Web的应用实现

介绍了本地网网管系统的特点，阐述了Ｗｅｂ模型及交互式应用实现方法，并通过实际应用的例子介绍了Ｗｅｂ 在本地网网管系统中的实现方法 。     

从烽火网管系统的升级谈传输网管的发展

文章简述了烽火网管系统的特点及其针对辽宁移动的升级改进过程,介绍了烽火OTNM2000网管系统软件升级和测试验证工作的情况,对传输综合网管系统的未来发展进行了讨论和展望.对未来的传输综合网管系统应当具有的网络监控、资源管理、资源调度、客户管理、网络分析和系统支撑等功能进行了详细说明.     

交换机网管系统设计方案

网管是通信专网可靠、稳定运行的重要支撑系统,通信专网发展越快,网管系统就越重要。介绍了专用于H20-20交换机的网管系统的设计方案,阐述了方案的设计思想、传输方式、系统硬件和系统软件等相关内容。该方案在实际应用中效果良好,得到了用户的认可和好评。     

管理不同域的网络管理集成框架

CORBA作为分布式对象领域事实上的标准，以其多平台支持、程序设计语言独立性等优势在新一代网络管理系统中备受瞩目。首先分析了网管系统的现状并简要介绍了CORBA技术，在此基础上结合web的网管模式，提出了一种基于CORBA的网管集成框架。该网管体系结构能够很好地实现网管系统可移植性、互操作性、可伸缩性和易获得性等特点。     

对用户接入网网管的探讨

首先分析了用户接入网网管系统的功能、现状;并对符合ＴＭＮ的网管系统及标准化进程作了介绍;着重分析了光纤用户接入网网管系统的实现和特点。     

一种可远程网管的光纤收发器的设计

针对目前网管光纤收发器网管模式比较单一,且网络管理功能不完善,存在稳定性较差、价格偏高等问题,提出了一种以LPC2210嵌入式处理器和IP113S光电介质转换芯片为核心,以嵌入式多任务操作系统μCLinux为操作平台的新型可网管机架式光纤收发器。该系统硬件主要包括光电转换、网管控制和电源等三大部分,而系统软件支持多种网络管理模式。实验结果表明,该系统设计达到预期目标,与传统产品相比,该系统的稳定性得到明显地提高,管理功能能够实时监控系统,适用于电信级业务应用。     

大唐简讯

大唐电信国家重点新产品服务长春通信　　日前 ,大唐电信软件公司承建的长春市网管系统软件工程通过了用户组织的初验。工程中使用的“本地电话网网管系统”,为长春通信实现从面向网络的维护转变为面向市场和用户的维护打下了坚实的基础。长春电话网网管系统包含故障管理、性能管理、配置管理、集中操作维护和系统管理等功能子系统 ,同期建设的还有电信营业及帐务工单自执行系统等。系统利用大唐软件自行研发的动态接口平台 ,解决了各种交换机接入、告警提取及统一、话务信息提取等问题 ,实现了对 5 ESS、S12 4 0、HJD0 4、NEAX6 1、N…     

通信网网管支撑系统运行质量管控的研究与实现

提出了一种通信网网管支撑系统质量管控体系,研究了通过网管支撑系统运行质量指标量化以实现质量管控的方法,并对具体实现方法的技术进行了阐述,为网管支撑系统的质量管控形成了良性的优化循环,以此提高通信实体的维护、服务、管理水平。     

长途电话交换网网管系统的研究与实现

针对长途电话交换网交换机机型多、网管接口不统一的状况、论文采用两种不同的方法管理交换机，并建立了长途网网管模型，基于该网管模型，论文着重研究了网管系统中关键部分综合集中维护系统的软件实现，该软件采用模块化设计，定义了共同模块和专业模块之间的接口，实现了共用模块和若干专用模块，软件可扩展，方便引入新的类型交换机。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

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.     

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.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

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.     

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.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

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.     

Study of waveguide coupling efficiency in hybrid silicon lasers

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.     

Teleportation of an arbitrary unknown N-qubit entangled state under the controlling of M controllers

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.     

Diode-end-pumped Nd:YVO4/LBO lasers with 4.2W continuous-wave output at 457 nm

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.     

A rigorous proof of MIMO channel capacity’s increase with antenna number

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.     

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