• 斜拉索粘性剪切型阻尼设计需要求解阶微分方程组,计算工作量很大。

    The differential equations with two degree have to be solved for designing viscous shear damper that is used to reduce the vibration of cables of cable stayed bridge.

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  • 孤立不变孤立块概念,给出了一个参数微分方程组的非驻定有界解分支存在性准则。

    Using concepts of invariable set and isolated cube, we obtained existence for bifurcate points of bounded solutions of second order ordinary differential systems including a parameter.

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  • 本文主要运用锥不定理格林函数研究非线性微分方程组存在性

    In this paper, we study the existence of positive solutions to second - order nonlinear ordinary differential equations by using fixed point theorem in cones and Green's function.

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  • CO、co_2加氢合成甲醇反应一个复合反应体系,其催化剂颗粒内的浓度分布的表征方程为微分方程组

    The hydrogenation reaction of co and CO2 to synthesize methanol is a multiple reaction system. The distributions of concentrations are described by second order ordinary differential equations.

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  • 圆柱状催化剂浓度分布表征方程微分方程组

    The mathematical model describing the profiles of concentration in the cylindrical catalyst is the nonlinear partial differential equations of second order.

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  • 采用降阶特征根 (欧拉方法 ,给出一类三维二阶系数微分方程组通解公式通过算例拉氏变换法进行了比较。

    With the variable replacement method, general solution formulae were given to the linear differential systems with complex constant coefficients and that with a class of complex variable coefficients.

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  • 使用锥上拓扑度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.

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  • 使用锥上拓扑度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.

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