查询词典 parameter equation

Based on the test results of sand, mechanics of internal parameters (plastic volumetric strain and plastic deviator strain) depending on stress path is explained. General equation expressing hardening parameter independent of stress path is proposed.

在分析砂土试验结果的基础上，揭示了基本硬化内参量(塑性体积应变、塑性剪应变)变化的应力路径相关性，提出了应力路径无关硬化参量的一般表达式。

The algorithm is deduced and difference equation of parameter error given by which the algorithm convergence is proved theoretically.

对该算法进行了推导，并给出了参数误差的差分方程，在理论上证明了算法的收敛性。

We estimate the parameter with least square method according to the difference equation

我们根据差分方程用最小二乘法来估计参数。

In the third chapter, we discussed the problem about partial differential equation with small parameter on the high-order item.

第三章主要对小参数在高阶项的偏微分方程进行讨论，也就是一般意义上的边界层问题。

We apply a differential evolution algorithm to study parameter inversion of two-dimensional wave equation.

利用微分进化算法进行二维波动方程参数反演的研究。

This paper is discussed the existence of solution for nonlinear boundary value problem of fractional differential equation which with a parameter.

本论文讨论了一类含有参数的非线性分数阶微分方程解之间的关系，写出了线性分数阶微分方程解的表达式。

Secondly, the analytical expression of shell stress is obtained by solving the differential equation amended by parameter A .

计算表明：如结构参数选择适宜，对称双圆弧柱壳在强度性能具有显著的优越性。

Key words two-dimensional wave equation; parameter inversion; differential evolution algorithm; finite element

利用微分进化算法进行二维波动方程参数反演的研究。

Appling least absolute deviation to calculate variable parameter of differential equation,robust grey model RGM(1,1) has been set up and used to forecast the settlement tendency of building.

将最小一乘法应用于微分方程变量参数求解，建立稳健灰色模型RGM(1，1)，并将其应用于建筑物沉降预报和比较。

This paper considers existence of extreme solutions to first-order differential equations with a parameter by the method of lower and upper solutions with monotone iterations,and monotonic sequence is uniformly converged to the extreme value solution of nonlinear equation after being constructed.

文章利用上下解方法和单调迭代技术讨论了含有一个参数的微分问题极值解的存在性，通过构造单调序列使这个单调序列一致收敛于非线性方程的极值解。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。