The optimum parameters include the optimum frequency spacing, average damping ratio, and tuning frequency ratio.

最优参数包括最优频率间隔、最优平均阻尼比和最优调谐频率比。

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Simultaneously, it provides the method to determine the best pressure of header system and optimum frequency of variable frequency pump based on the special working condition.

同时，给出了在特定工况下，确定最佳母管压力和变频泵最佳频率的方法。

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Through the optimum searching, one may obtain the optimum frequency spacing, average damping ratio, tuning frequency ratio, and corresponding index representing the control effectiveness of MTMD.

通过最优搜寻可得MTMD的最优频率间隔、平均阻尼比、调谐频率比和相应的无量纲控制有效性指标。

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The vendors were Total Rebalance Expert, iRebal, Tamarac and TradeWarrior and they discussed the key features of their respective programs as well as the optimum rebalance frequency, support for multi-level models, increasing advisor productivity and options for integration with other system.

FORBES: Choices in Portfolio Rebalancing