variable coefficient

In this thesis, we mainly study supercloseness of quadratic serendipity block finite element method for three-dimensional variable coefficient elliptic problems.

本文主要研究三维变系数椭圆方程二次奇妙族有限元方法的超逼近。

New Operator solution Of Higher Order linear Differential Eguation with variable coefficient

引入了方向算符（？）高阶变系数线性微分方程的新算子解法

Dependable index decrease when increase of variable coefficient of cohesion and angle of internal friction of slope.

当土坡的粘聚力变异系数，内摩擦角变异系数增大时，可靠指标有很大的下降；

The variational coefficient which depends on space variable, new properties appear.

由于依赖于空间变量的变化系数的作用，将出现与具有齐次系数的方程完全不同的性质。

Constant coefficient computing formulas are better than traditional variable coefficient computing formulas. Constant coefficent formula for conformal projection transformation is the best model for computer calculation. They could be widely applied in flelds of computer cartography, map databases and GIS, ect.

常系数计算公式优于传统的变系数计算公式，是基于计算机的等角投影变换的最佳模型，它在计算机制图、地图数据库、GIS等领域中有着广泛的应用。

Water has a variable coefficient of expansion.

水的膨胀系数是可变的.

Study on variable coefficient gam model of settlement prediction

沉降预测的变系数灰色GAM模型研究

When variable coefficient of cohesion and angle of internal friction range from 0.1 to 0.3, dependable index decrease particularly, and dependable index is more sensitive to variable coefficient of angle of internal friction.

且粘聚力变异系数，内摩擦角变异系数在0.1到0.3时，可靠指标下降特别明显，然后趋于缓和；可靠指标对内摩擦角变异系数的变异性更加敏感。

In this paper, a new method to solving soliton-like of the variable coefficient KP equation is given.

给出了求解变系数KP方程孤子解的一种新方法。

To avoid this circumstance, this paper puts forward a method for normalizing Haar function and judging dangerous appearance in combination logic circuit by use of ha coefficient map under the condition of variable number < 6. This method has the characteristics of being simple and direct.

为避免这种现象，给出了Haar函数归一化的一种方法以及在变量数<6时用ha系数图判断组合逻辑电路险象的方法，该方法具有简单、直观的特点。

The Stability of First Constant Differential Equation with Variable Coefficient

变系数n次一阶常微分方程解的稳定性

Chaos ′ s feedback control of variable coefficient of inverse proportion and its application in exchange rate control

混沌变量反比系数反馈控制及其在汇率波动控制中的应用

Numerical results show that the convergence velocity of the complex-mode Galerkin method is higher than that of the real mode Galerkin method for a variable coefficient gyroscopic system.

数值结果表明，复模态Galerkin方法相比实模态Galerkin方法对变系数陀螺系统有较高的收敛速度。

Discussion of Key to Second Order Linear Variable Coefficient Differential Equation

简议二阶变系数线性微分方程解法

After the testing of panel model setting, this paper established a variable coefficient model of the panel.

经过面板模型的设定检验，本文建立了变系数的面板模型。

Study on the optimum method of response computation of the vibration system with variable coefficient of sliding friction

变滑动摩擦系数振动系统最优化计算方法研究

It also gives out a variable coefficient density compensation formula used for measurement of mass flow of the low pressure saturated steam, and the features of this formula.

给出了一个用于低压饱和蒸汽质量流量测量的变系数密度补偿式和该补偿式的特色。

Because of the great elastance of load and deficiency of conventional PID control, variable coefficient PID control method is put forward to improve the pressure control precision of the hydraulic system.

而针对负载弹性较大而常规PID控制方法应用在该系统中有明显不足，本文提出用变系数PID控制方法提高液压系统压力控制精度，该方法简单有效，适合工业应用。

A Compact Difference Scheme for a Class of Nonlinear Reaction-Diffusion Equation with Variable Coefficient

一类变系数非线性反应扩散问题的紧致差分方法

The system with variable coefficient is also discussed.

对于变系数的微分系统也作了相应的讨论.

A method to solve soliton-like solution for a variable coefficient KP equation

求变系数KP方程似孤子解的一种方法

New solitary wave-like solution and exact solution of variable coefficient KP equation

变系数KP方程新的类孤波解和解析解

Finally, group classification of a generalized KP equation is undertaken. Group invariant solutions of the equation are obtained by combining the symmetry reduction method with the variable coefficient generalized Tanh method.

另外，我们还给出了广义Kadomtsev-Petviashvili方程的古典对称群分类，并结合变系数广义Tanh函数方法获得了其群不变解。

Elliptic periodic solutions of 2+ 1-dimensional variable coefficient generalized KP equation

2+1维变系数广义KP方程的椭圆周期解

In previous papers on transient thermocouple for high gas stream temperature measurements, it was assumed that thermal inertia coefficient of the probe is not variable with wire temperature, and that thermal radiation from the probe may be negligible.

以前有关高温气流温度测量的动态热偶法的文章都假定，探头的热惯性系数不随丝温变化，且探头的热辐射可忽略不计。

New exact solution of the general variable coefficient KdV equation

广义变系数KdV方程新的精确解

Algorithm of state assessment was programmed, using moderate index model to interpolate linearly, and with the application of variable weight synthesis principle and correlation of slope coefficient, according to a set of measured data, state of cable tensions and linetype were calculated.

编制状态评估算法，利用变权综合原理和斜率关联度，以适度指标模型进行线性插值，并根据一组实测数据，对索力、线形状态进行评估。