发挥网管系统作用加速维护改革进程

湖北省14个扩大本地网的交换机集中监控网管系统现已全部建成并投入运行.网管系统建成后,如何有效地发挥网管系统的作用,提高网路管理和交换机维护水平,促进本地网的维护改革,是各级维护部门所面临的重要工作之一.本文就网管系统建成后,利用网管系统来对交换机进行集中监控、维护、管理等方面提出一些具体操作的意见和建议.     

如何使UHF发射机在村村通中发挥无人值机作用

实施西部工程和村村通工程,处在最基层的县级广播电视部门的任务最重,困难也最大。作为该工程实施县之一的贵德县,全县地形较为复杂,各乡镇经济发展不平衡,因此在实施西部工程、村村通工程中,如何立足实际、因地制宜、注重实效成为摆在技术人员前面的头等大事。就贵德县而言,工程实施过程中,技术人员综合考虑实     

如何发挥航空产品质量控制过程中质量检验的作用

航天商品科技含量极高,结构设计精密复杂,每一个合格的航空产品都是由质量合格的整体框架、子系统、电子部件、元器件及软、硬件系统组成的,具有高科技设计与组装复杂的特殊性。这使得航空产品及其零部件的衍生品在生产过程中,质量检验工作难度系数较大。但是航空产品在使用过程中,只要出现微小的的疏忽就有可能酿造严重航空事故,所以质量检验工作必不可少。本文重点研究了航空产品质量控制过程中质量检验的作用,希望对提高我国航空技术水平有所帮助。     

发挥GSM话务网网管系的作用更好地为移动通信服务

本文对GSM话务网网管系统的功能及作用做了简要介绍,并从实际出发对通过使用网管系统怎样才能更好地为移动通信服务进行了阐述.     

在光网建设领域中引入民营资本

首先介绍在光网建设领域中引入民营资本的背景,接着给出项目实施方案,并给出相应的风险分析、解决方案以及针对关键因素实施策略和效果。可以看出,针对投资不足与光网建设需求迫切的突出矛盾,合理引入民营资本,开展光网合作共建,打造全光网络,为城乡、农村的信息化建设提供有力保障。     

在新兴产业看小元件如何发挥大作用

电子元器件处于电子信息产业链上游,是通信、计算机及网络、手持设备、数字音视频、工厂自动化、汽车等系统和终端产品发展的基础,对电子信息产业的发展起着至关重要的作用。不过就像很多投资机构分析的那样,由于整体终端增速下滑,人工成本上升,中国电子制造业模组代工的黄金时期已过。展望未来,电子元器件的市场增长机会还是更多地集中在创新集中的一些领域,例如智能手机增速高峰已过,物联网应用和互联网硬件爆发性增长的时期刚刚到来。展望未来,万物互联是大的趋势,可穿戴设备、移动医疗、智能家居、智能汽车等都将是未来大数据的入口,电子元器件在这些领域的增长空间可期。     

如何有效发挥监事会在国有企业管理中的作用

我们都知道在国有企业中监事会对企业的管理有着监督的作用,其可推动国有企业管理的发展,那么如何有效发监事会在国有企业管理中的作用呢,本文我们将对此进行深入的研究与讨论,希望读者能够从中受益。     

试论如何发挥档案管理在医院发展中的作用

在医院管理工作中,档案管理是其中的一个重要组成部分。它关系到医院的制度建设、文化建设、业务人员素质的提高等,对医院整体水平的提高和系统化发展有着举足轻重的作用。     

光网建设在促进智慧城市发展中的作用分析

随着计算机网络技术的飞速发展,社会的经济、文化、教育、科技等方面出现了很大的变化,宽带业务也从世纪初的奢侈享用到现在飞入寻常百姓家。随着人们对生活要求的逐渐提高,智慧城市的概念也呼之欲出。网络的“提速”,会带给智慧城市什么样的影响,在智慧城市的发展建设中起到什么样的作用就是本文要讨论的问题。     

Management of optical transport networks

Optical networks are playing an increasingly important part in meeting the demand for communication bandwidth. Especially since the introduction of wavelength division multiplexing techniques optical network management has received increasing attention. This paper describes optical network management in terms of an architectural framework that can be applied not only to optical line systems but also to more complex optical networks. This is placed in the context of operational trials conducted by BT on two long-haul routes     

How to make deregulation work

Every regulated industry manifests the same rules, while each deregulated industry is unruly or even dysfunctional in ways unique to it. Figuring out how to fix each one's problems is in its own right a huge technological challenge-technological in the economist's sense of referring to all aspects of business organization. Alfred Kahn, the father of airline deregulation, continues to publish frequently on all aspects of regulation and to give testimony when his views are solicited, which they frequently are. In the interview given in this article, Kahn expresses skepticism about introducing consumer choice in electricity, mounts a robust defense of airline deregulation, and expresses some optimism about the prospects of making local telephone systems more competitive     

Network architecture for optical path transport networks

This paper proposes a new layered transport network architecture on which the WDM optical path network can be effectively created. The optical path network will play a key role in the development of the transport network that will realize the bandwidth-abundant B-ISDN. This paper extends the layered transport network architecture described in ITU-T Recommendation G.803 which is applied in existing SDH networks. First, we elucidate an application example of WDM optical path networks. Next, we propose a new layered architecture for WDM-based transport networks that retains maximum commonality with the layered architectures developed for existing B-ISDN networks. The proposed architecture is composed of circuit layer networks, electrical path layer networks, optical layer networks, and physical media (fiber) networks. The optical layer is divided into an optical path layer and an optical section layer. The optical path layer accommodates electrical paths. Optical section layer networks are divided into optical multiplex section (OMS) layer networks and optical repeater section (ORS) layer networks. The OMS layer network is concerned with the end-to-end transfer of information between locations transferring or terminating optical paths, whereas the ORS layer is concerned with the transfer of information between individual optical repeaters. Finally, a detailed functional block model of WDM optical path networks, the function allocation of each layer, and an optical transport module (OTM) are developed     

Management and control of transparent optical networks

Multiwavelength optical networking is expected to play a significant role in the next-generation transport networks providing capacity enhancements as well as built-in network survivability and reconfigurability. While advances have been made in the hardware technologies, considerable research effort is still required in the area of network management and control in order for optical networking to be proven commercially viable. This paper investigates key design issues concerning optical network management and control and examines how the networking architecture is influenced by the various management considerations     

Network virtualization over WDM and flexible-grid optical networks

Network virtualization can eradicate the ossification of the Internet and stimulate innovation of new network architectures and applications. Optical networks are ideal substrates for provisioning high-bandwidth virtual-network services. In this study, we investigate the problem of network virtualization over both WDM and flexible-grid optical networks by formulating the problems as mixed integer linear programs (MILP). Two heuristics, namely MaxMapping and MinMapping, are developed for each kind of network to solve the problem quickly but suboptimally. Numerical examples show that MinMapping consumes fewer spectrum resources than MaxMapping and performs very close to the optimal results derived by the MILP in both kinds of optical networks, by exploring the opportunities of traffic grooming. Also, it is verified that flexible-grid optical networks can be more spectrum efficient than WDM networks as the substrate for network virtualization.     

怎样做好电磁屏蔽

电磁屏蔽是解决电磁兼容问题的重要手段之一。大部分电磁兼容问题都可以通过电磁屏蔽来解决。用电磁屏蔽的方法来解决电磁干扰问题的最大好处是不会影响电路的正常工作,因此不需要对电路做任何修改。     

如何让你的网络更安全

由于互联网的不断普及,企业之间的联系比以往更加密切,因此企业必须在发展或提高生产力的同时确保其网络的安全。防火墙对于企业网络来说是一个周边警卫,决定往来的信息是否可以进出。它之所以能做到这点,是根据多种标准(例如封包来源、目的地和协议)而执行策略的,由“接受”和“拒绝”的规则所构成。通过提供接入控制,防火墙提供了出色的第一层防护。许多防火墙策略都支持允许机构在网上从事商业活动的协议.如SMIP.FTP.HTTP,     

如何摆脱宽带盈利困难的怪圈

假如在两年前，你询问某个宽带网络运营商或投资商，您的盈利前景如何，他一定会信心十足地告诉你，看看互联网的发展，平均3个月就翻一番的用户数量，只要小区铺满了宽带网络，就一定会有源源不断的收入和利润滚进腰包。假如你在一年前询问某个宽带网络运营商或投资商同样的问题，他会略微闪烁地告诉你，宽带网络有最好的盈利前景和无限广阔的发展空间，现在出现的问题是如何培育市场。没有足够的宽带应用服务就会影响整个产业生态环境的建立，解决途径需要由运营商整合宽带产业链，发展宽带应用服务、多种终端设备，共同促进上网率的提高…