Emphasis is given on characteristics and differences of five representative ring networks.

着重介绍了五种有代表性的环形网络结构，强调它们的特点和不同之外。

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Resilient ring networks can contribute significantly to network resilience in the event of failure but they do not in themselves provide absolute network redundancy.

弹性网络在网络故障发生时能表现出显著的网络弹性，但就网络本身来说，它并不能提供绝对的网络冗余。

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This paper, by means of theoretical analysis and system simulation, studies the influence of various system parameters on its performanco. and compares it with other ring networks.

与其他环形网相比，其有效传输率较低。 本文从理论分析和系统仿真两种方法入手，研究了各种参数对系统性能的影响，并与同类网络进行了对比。

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BeKnown is an effort to replicate this growth while offering clear ways to ring fence professional and social networks.

FORBES: Monster's BeKnown Stalks LinkedIn On Facebook

Electricity supplier Central Networks has advised customers to ring 0800 328 1111 to report loss of supply.

BBC: NEWS | UK | Water runs out in flood-hit areas

Users can be logged into the service on up to five devices at once - meaning all will ring if they receive a call - including handsets using Sim cards associated with different networks and internet enabled gadgets such as iPods.

BBC: O2's Tu Go aims to challenge Skype and other Voip apps