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We consider an RC-series DC driven electric network. We envision the capacitor C is a parallel-plate capacitor with a pair of elliptical plates. We apply a set of transformations mapping the ellipses gradually and continually into their corresponding rectangles; this makes the capacitor time-dependent, C(t). We analyze the impact of the shape-shifting capacitor on the corresponding RC(t) transient...
This paper presents a linear throttling groove, which could make the area of flow section directly proportional to the size of the entrance. When the linear throttling groove is used on the electromagnetic proportion throttle valve, it can achieve the discharge through valve port and the displacement of valve core with a regular linear change, and when the throttle valve is used with proportional...
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