acoa

Based on ant colony optimization algorithm ( ACOA) optimized the parameter of PI regulator, the dynamic indexes of APF system are improved.

采用蚁群优化算法（Ant Colony Optimization algorithm，ACOA）对PI调节器的参数进行优化，以改善系统的响应速度，从而提高了整个系统的瞬时特性。

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This thesis describes ant colony as CAS, and expatiates fundamental of ACOA, and makes simulation experimentation to actual Beijing city road network.

本文利用复杂适应系统理论描述了蚁群系统，阐明了蚁群优化算法的基本原理。通过实际的北京市城市道路网，进行了仿真试验。

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The rates of the functional patency of the AcoA for men and women were 87.6% and 83.3%, left PcoA 28.9% and 34.1%, right PcoA 34.4% and 29.2%, respectively.

前交通动脉功能开放率男女分别为87.6%、83.3%，后交通动脉左侧分别为28.9%、34.1%，右侧分别为34.4%、29.2%。

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The shape of AcoA related with the diameter of the double A 1 segments.

ACoA的形态与双侧A1段直径关系密切。

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Conclusion There is a close relationship between hypoplasia of A 1 segments and AcoA aneurysms.

结论大脑前动脉水平段（A1段）发育不全与前交通动脉瘤有较高的相关性；

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The relationship between hypoplasia of A 1 segments and ACoA aneurysms was highly correlative.

A1段发育不全与ACoA动脉瘤可能有较高的相关性。

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Xstrata Coal is also understood to have looked at Felix.

据信,XstrataCoal也对Felix有兴趣.

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Methods A retrospective analysis had been made in 56 patients with ACoA aneurysms in respect of the clinical manifestations, imaging findings, surgical therapy and prognosis.

方法回顾性分析56例前交通动脉瘤病人的临床表现、影像资料、手术治疗及预后情况。

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