对于一类带有模型不确定性、噪声干扰的线性系统，研究了其故障检测中的阈值设计问题。

The design of threshold for robust fault detect was studied for a linear system with model uncertainty and noise.

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具体讨论了具有分片线性传染力的SIR模型在无标度网络上的流行病传播阈值，并运用分片线性传染力得到了传播阈值为正的条件。

In further details, this paper discussed the epidemic threshold for disease spreading using SIR model with piecewise linear infectivity on scale-free networks.

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