电缆附件接触应力的光弹性实验研究

采用光弹性实验方法验测得电缆附件接触界面的应力分布,并在此基础上优化电缆附件接触界面的结构参数以改进理论设计,实验结果表明这种方法是非常有效的。     

考虑施工可行性的斜拉桥极限跨径研究

以苏通大桥结构形式为基本模式,在现有制造和施工水平的假定条件下,研究斜拉桥的极限跨径。研究通过利用大型空间有限元软件ANSYS及简化模型的计算分析,结合对目前桥梁施工设备能力的调查分析,从斜拉桥的施工可行性,施工过程中关键技术可实现性和施工安全性出发,对斜拉桥可能达到的跨径进行了定量分析。研究中主要考虑了斜拉索的张拉能力,施工过程强度和线形控制,施工稳定性几个方面。研究结果显示,采用苏通大桥的桥型结构和施工技术,斜拉桥可以实现的跨径为1 500 m。增大跨径的途径也在文中进行了探讨。     

Media advocates,Latino citizens and niche cable The limits of ‘no limits’ TV

In Shot in America, Chon Noriega calls for the study of media activism’s work ‘within the system’ of state institutions and for analysis of the relationships between media activism, the television industry and government policies. This article uses a cultural policy studies focus to answer this call and map the deregulated terrain upon which media advocacy groups must now operate. Liberal governance demands that media advocates find means other than state-directed appeals to advance their agendas. As such, this essay examines the efforts of several Latino advocacy groups to garner viewer support for a Latino-themed cable television show, Resurrection Boulevard, and to use the series as a vehicle for increased Latino participation in the television industry. This article focuses on the issue of access for Latinos to professional positions that affect television programming, and it presents tools for advocacy efforts within political spheres to achieve more socially equitable access to media technologies. First, the paper traces the regulatory history of the broadcasting and cable television industries to show how the federal government narrowly conceives of ‘the public interest’ as a specifically consumerist one. The article then analyses the structures that led to cable television’s ‘narrowcasting’ format, such as Showtime’s ‘No Limits’ programming, and argues that liberalism has created a context wherein several media advocates normalise the ‘citizen-consumer’ model. Having established this groundwork, the author then conducts a case study of the economic and social forces that shape Resurrection Boulevard, which is written, produced and acted by Latinos. Through this study, the author maintains that advocacy groups’ consumer-based appeals to Latinos as ‘citizen-consumers’ fail to serve as effective instruments for achieving increased minority representation in the television industry.     

不定周长轮电缆测长仪

利用随轮运动的光栏宽度及光拦的挡光时间测量轮子的角速度,间接计算缆线长度,解决了电缆测长仪中对轮周长标定的困难和轮与缆线间打滑的问题。光栏的宽度可准确标定,挡光时间由单片机测量。     

近接基坑电力隧道开裂原因及整治技术

石家庄市石中一二线（16# 北道岔站）电缆隧道与阿尔卡迪亚三期商业综合体基坑工程近接,在基坑施工过程中隧道结构出现了开裂现象。采用无损检测、强度试验和数值模拟等手段,对隧道开裂原因进行了分析和探讨,并针对工程特点提出了隧道洞内套拱结合洞周地层注浆的综合治理方案。分析结果表明：在基坑施工过程中,原有隧道结构的安全性已不能满足要求,隧道洞内套拱结合洞周地层注浆的方案,能够保证后续施工和使用安全     

新形势下火电企业电煤管理问题与对策研究

聊城市湖南路大桥是一座无背索斜塔竖琴式斜拉桥。主梁采用超宽预应力混凝土结构,建成后宽幅将居同类桥型之首。无背索斜塔斜拉桥最大的特点是利用倾斜索塔的自重而不是背索索力来平衡主跨主梁的自重。介绍了湖南路大桥的主要设计特点及主体结构的施工方法,并对设计中遇到的一些关键性问题进行较系统的研究,有利于该桥型的进一步发展。     

一种微波波导电缆拉制机用计算机控制系统

针对一种自行研制并投入实际应用的椭圆波导拉制机用计算机控制系统,介绍了其系统结构设计、功能设计与有关软、硬件的具体实现方法。该系统在单片机控制系统的控制下,自动完成椭圆波导电缆的拉制。经过试运行表明,系统能满足设计和使用要求。     

如何共享cable modem宽带上网

在目前电信大力推广的Internet宽带接入方式中,大多采用以太网接入或ADSL接入方式.而在尚未开通上述业务的地区,只要能够接收到电信的有线电视信号,就可采用线缆调制解调器(即cable modem)接入方式,我院目前采用的就是这种宽带上网的方法.本文从实用技术角度,对相关的网络安装配置操作做了较为详细的介绍.     

大面积深基坑钢板桩支护技术

应用钢板桩＋坑外拉锚支护技术，结合信息化监测，有效解决了大面积软弱地质深基坑支护的技术难题，实现了工期目标，对同类工程施工具有参考价值。