Abstract: Aiming at the nonlinear and time-varying characteristics of freeway traffic system, a fuzzy self-adaptive PID controller is designed and applied to freeway ramp metering in this paper.

摘要：针对高速公路交通系统的非线性、时变特性，设计了一种模糊自适应控制器，并将其应用于高速公路匝道控制系统。

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Since putting into use, the self made metering device had run safely and efficiently.

自制的计量装置投入使用后安全高效。

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This paper summarizes the measuring parameters of the soils in both the soil bin and the field, by use of the self designed HTY-3 type soil parameter metering device for dry farmland.

本文简述了利用自行设计的HTY - 3型旱田土壤参数测定仪对土槽土壤和田间土壤进行的测定。

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The paper notes the success of numerous policies California has implemented to promote distributed generation, including the California Solar Initiative (CSI), net energy metering (NEM), the renewable auction mechanism (RAM), and the Self-Generation Incentive Program.

FORBES: 9 Recommendations To Continue California's Local Clean Energy Boom