The software comes true the double closed loop regulator, therein the velocity loop is the variable-structure control, and the current loop is the classical PI control.

软件实现了调速系统的双闭环调节，其中速度环采用滑模变结构控制，电流环则是经典的PI控制。试验结果说明该调整系统有较好的动态和静态性能。

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From the engineering point of view, a design method for single input optimal regulator with preassigned closed-loop pole by inverse problem approach has been derived.

给出了从逆问题指定闭环极点设计最优调节器的方法，试图从工程角度解决单输入线性定常系统最优调节器的极点配置问题。

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This paper introduces a control scheme with single loop digital regulator for the boiler drum level control and describes the composition of the system.

本文介绍了用单回路数字调节器实现锅炉汽包水位控制的方案及系统的组成方法。

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Bobby Calder's research showed that every extra syllable in a product's price decreases its chances of being remembered by 20%, something caused by the fact that a person's phonological loop -- a regulator of memory -- can only hold 1.5 to 2 seconds of spoken information.

CNN: Researching the business world

Chiefs at the Earthlease consortium have told telecoms regulator Oftel details of plans to buy BT's so-called "local loop" assets, sources told news agency Reuters.

BBC: BT bidders in talks with watchdogs