• 文章基于非线性跟踪非线性度变换以及PID校正思想,构造了一种新的非线性PID控制结构。

    This paper proposes a new nonlinear PID model of valve controller based on nonlinear tracking-differentiator, nonlinear norm and PID adjustor.

    youdao

  • 使用锥上拓扑理论研究非线性奇异微分方程组两点边问题存在性

    By using fixed point index theory in a cone, we study the existence of positive solutions of boundary value problems for systems of nonlinear second order singular differential equations.

    youdao

  • 使用锥上拓扑理论研究非线性奇异微分方程组两点边问题存在性

    By using fixed point index theory in a cone, we study the existence of positive solutions of boundary value problems for systems of nonlinear second order singular differential equations.

    youdao

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