查询词典 characteristic differential equation

There are two main disadvantages in the present differential algebra equation model used in AC/DC system: one is that 'dimensional calamity' can occur with the increment of DC transmission lines; another is that it is difficult to deal with the switch of DC control mode.

目前普遍使用的AC/DC系统的微分代数模型主要存在2大缺陷：①随着直流线路的增加可能出现"维数灾难"问题；②不易处理直流控制方式的切换，计算繁杂。

Is in the elementary grade, differential calculus and integral calculuses these three manifestations, look for it in the inside structure and prove the thought up of organic unify;Combine to these are not some application of in other respect equation.

本文主要介绍几个重要不等式如不等式等在初等、微分和积分这三个方面的表现形式，寻找其在内在结构和证明思想上的有机统一；并给出这些不等式在其他方面的一些应用。

According to lift method and Hooke's law and applying differential and integral calculus theory, calculated equation for free point of these string is reduced respectively,and considering influence of collar and adding power from stem to it, corrected coefficient to drill stem is determined.

对在井中被卡的单一管柱和组合管柱分别进行了受力分析；采用提升法，依据虎克定律，应用微积分理论，分别推导出了单一管柱和组合管柱的卡点计算公式；并且考虑了管柱接箍、管柱加厚对其影响，确定了管柱修正系数。

In the analysis of the circuit, the differential equation based on the theory of electromagnetism had been established; the circuit qualitatively had been analyzed, and the current on the coil in the process of experiment had been calculated.

在电磁压制放电电路的模拟分析中，基于电磁学理论建立了放电过程的微分方程，对电路作了定性的分析；通过对实验参数的模拟，求解出实验过程中线圈上的载荷电流。

The transformed value function is proved to satisfy dynamic programming partial differential equation with the coefficient of risk aversion.

给出了值函数和风险规避系数的定义，并通过对值函数进行非线性变换，证明了变换后的值函数满足带有风险规避系数的动态规划偏微分方程。

Based on the time-domain calibrating data of the sensor, this method can determine the coefficient of either differential equation or transfer function directly.

这种方法以传感器时域动态校准数据为基础，可以直接得出传感器对应的微分方程或连续传递函数的系数。

The main works are as following: On the one hand, using the wavelet analysis theory and the Galerkin methods to solve a kind of second-order variable coefficient differential equation is discussed.

主要做了以下工作：一方面，本文应用小波分析理论结合Galerkin 方法讨论了某一类二阶变系数微分方程的求解问题。

In this paper,we consider necessary conditions for optional control of second order ordinary differential equation with coefficient control and two point boundary value,thenobtain the inequality of variation.

在这篇文章中，我们考虑控制出现在最高阶系数上二阶常微分方程系统最优控制满足的必要条件，得到了最优控制满足的变分不等式。

In particular, the time-domain electric integral equation of second-order time differential coefficient is calculated by an explicit MOT solution.

本文利用时域矩量法及其与时域有限差分方法的混合法分析计算目标电磁辐射与散射问题。

The deflection curve differential equation of beam body structure on elastic foundation is solved, relationship of variables between its internal force and coefficient of elastic foundation is formulated.

通过求解弹性基础上梁体结构挠度曲线微分方程，建立了梁体结构内力与基础系数间的关系，分析了混凝土徐变等特性对梁体应力的影响。

I'm going tor her!

我这就去救她！

As rise are design to help keep a several toney , a brain chemical at continues lever.

SSRI被设计来帮助保持血液中的复合胺即在大脑中一个连续水平的化学物质。