As the nonlinearity, time-varying parameters and large lag make the control difficult, a predictive functional control method based on T-S (Takagi-Sugeno) fuzzy model is presented.

针对其存在非线性、参数时变和大延迟等难以控制的特性，提出基于T - S模糊模型的预测函数控制新方法。

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This paper describes the contents including the helicopter autorotation coming into lag time, autorotation landing, flight theory determined by flight quality, flight method and pilot technique.

本文从试飞员的角度系统讲述了直升机自转进入滞后时间、自转着陆及飞行品质确定的试飞原理，试飞方法及驾驶技术等内容。

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Studies the influence of mask on lag time, and introduces the optimize method of the usage of point fire detector based on the character of environment.

通过实验研究了防虫网对报警迟滞时间的影响程度，提出了根据环境合理选择点型感烟探测器的方法。

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The SSRIs' more indirect method of action is likely the reason why there is a lag time before patients feel relief from depressive symptoms, says Ronald S. Duman, professor of psychiatry and neurobiology at the Yale University School of Medicine in New Haven, Conn.

WSJ: Drugs to Relieve Depression in Hours Not Weeks