This paper discussed the critical task, critical task set and critical task group involved conflict resource in a project scheduling scheme, and put forward a unified quantitative express method.

讨论了项目进度计划中与冲突资源相关的关键任务、关键任务组以及关键任务群，提出了统一的定量表示方法。

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Focusing on the resource allocation issue in OFDM-based cooperative cognitive radio networks, an efficient cross-layer scheduling scheme is proposed.

针对基于OFDM的无线协同认知网络中的资源分配问题，该文提出了一种有效的跨层资源调度方案。

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