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针对“全视通”会议视讯系统中视频通信协议不能穿越防火墙和NAT的问题,介绍了防火墙和NAT的工作原理,论述了防火墙和NAT阻碍IP视频和语音通信的原因,并提出了基于隧道穿透技术的解决方案。 相似文献
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Game theories were used to study the problem of quality control in the two-echelon supply chain which has one manufacturer and one supplier in this paper. Firstly, a stackelberg game was introduced into the quality control of a two-echelon supply chain. In this general non-cooperative quality control game situation, the manufacturer acts as the leader, the optimal action policies were obtained for the manufacturer and the supplier. Then, a Nash bargaining model was used to analyze optimal action selection in the cooperative quality control game situation and to determine the profit segment between two supply chain members after collaboration. By comparison of two game equilibrium results above, it was found that the cooperative quality control game structure is superior to the general non-cooperative quality control game structure during the process of quality management in the two-echelon supply chain. Finally, a numerical example is given to illustrate the conclusion of this paper. 相似文献
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该文旨在阐述软土地基上深层搅拌桩的具体施工技术,并着重介绍施工过程中的地基加固机理、搅拌桩施工技术,搅拌桩施工管理及注意事项,从而较好地控制质量,预防、减少或杜绝质量事故的发生。 相似文献
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深秋来临,凉意袭人,然而天津杨柳青镇上的出租车司机们的心里却像着了一把火。 相似文献
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通过对薄壁式混凝土墩台质量缺陷的分析,阐明了该类混凝土结构的施工质量控制关键技术。 相似文献
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根据铁路站台图像监视系统的特点,提出了采用电话线10km无中继传输图像的编码方法。图像采集压缩板将压缩后的图像码流通过Modem与电话线相连;接收端采用软件解压缩,软件算法融合了H.263/H.263+标准算法和图像增强与分割技术。 相似文献