常微分方程组边值问题锥不动点指数理论正解。
Nonlinear ordinary differential systems boundary value problems cone fixed point index theory positive solution.
本文导出的动力学控制方程是高度非线性的STIFF常微分方程组。
The dynamic equations developed in this paper are a set of highly nonlinear STIFF ordinary differential equations.
利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.
摘要利用锥上的不动点指数研究了一阶非线性常微分方程组的周期边值问题。
In this paper, by using the fixed point index method, the authors discussed the periodic boundary value problem of first order differential systems.
对一个实际物理问题，构造相应的模型，得到描述其运动状态的常微分方程组。
In this paper, a system of differential equations is presented to describe the movement of the constructed model for a physical phenomenon.
该方程是关于液缸内液体压力、泵阀升程与泵阀运动速度的一阶常微分方程组。
The new model is a first-order ordinary differential equation group for the fluid pressure in the cylinder...
许多化工过程的精确动态分析计算是一个大规模的刚性常微分方程组的求解问题。
The accurate dynamic analysis of a lot of chemical processes is a large scale problem of solving an array of combined stiff ordinary differential equations.
它是一组典型的刚性常微分方程组，用一般方法求解时只能选用很小的时间步长。
This is a set of typical stiff ordinary differential equations, very small time step could only be adopted when solving the set of equations with common methods.
对二维发汗控制方程建立了直线解法，可用任何解常微分方程组的数值方法求解。
In this paper, line methods for two dimension transpiration control equations are created, and new equations may be solved in terms of numerical methods for system of ordinary differential equations.
本文主要运用锥不动点定理和格林函数研究二阶非线性常微分方程组正解的存在性。
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.
在小变形情况下，运用伽辽金方法，可将偏微分方程转换为线性常微分方程组进行求解。
A set of linear ordinary differential equations in the case of sm all deflections is determined by application of the Galerkin's method.
利用常微分方程组理论在较一般条件下求出了线性有阻尼多自由度振动系统对任意外激励的精确响应。
Exact response of damped linear vibrating systems to arbitrarily excitation is obtained according to theory of ordinary differential equations.
受控系统的运动设为变系数线性常微分方程组所描述，而系统的终点状态是相空间内的某一凸性区域。
We assume that the motion of controlled object is describedby linear ordinary differential equations with variable coefficient, and the final states ofthe system form a convex region of phase space.
为模拟自然界中既包含竞争关系又包含捕食-被捕食关系的生态系统，建立用常微分方程组表示的环状模型。
An annular model for chemostat was depicted by a group of ODE(ordinary differential equation) to imitate the ecosystem which included competition and predator-prey relations in nature.
用孤立不变集和孤立块的概念，给出了含一个参数的二阶常微分方程组的非驻定有界解分支点的存在性准则。
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.
理论上讲，借助数值求解该常微分方程组便可得到有关激波的主要信息，结果将为行星际激波求解提供便捷的途径。
Theoretically, the entire information for the shock can be obtained by sorting to the numerical solutions to the set of ODEs easily.
看出，截谱模式方法的最大成功之处在于揭示了大气中多重平衡现象。 利用此法可将模式方程转化为耦合常微分方程组。
It is shown that, the method of truncated Spectral model clealy exhibits great excellence for establishment of the multiple equilibration phenomenon in the atmosphere.
由CO、co_2加氢合成甲醇的反应是一个复合反应体系，其催化剂颗粒内的浓度分布的表征方程为二阶常微分方程组。
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.
考虑具有介质阻尼及非线性粘弹性本构关系的梁方程，证明了它的有界吸收集和有限维惯性流形的存在性，并由此得到在一定的条件下所给偏微分方程等价于一常微分方程组的初值问题。
The equations of nonlinear viscouselastic beam are considered, The existence of absorbing set and inertial manifolds for the system are obtained, and from which we get that the P D E.
考虑具有介质阻尼及非线性粘弹性本构关系的梁方程，证明了它的有界吸收集和有限维惯性流形的存在性，并由此得到在一定的条件下所给偏微分方程等价于一常微分方程组的初值问题。
The equations of nonlinear viscouselastic beam are considered, The existence of absorbing set and inertial manifolds for the system are obtained, and from which we get that the P D E.
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