differential coefficient

This paper discusses the method of hypothesis testing on equation parameters, and the way of getting new equations to explain the speed, acceleration and jerk through calculating the differential coefficient of cubic equation.

该文还介绍了方程参数显著性检验的方法，并通过对方程进行多次求导，得到新的方程，来描述研究期间土地利用类型面积的变化速度、加速度以及加加速度。

Comparing with the traditional method of drawing internal force chart, this method is very simple, it is easy to master and easy to check-up. It unifies drawing shear diagram and bending moment chart using the differential coefficient connection between load collection degree and internal force.

与传统绘制内力图的方法相比，该方法不仅简捷、直观、易于掌握、便于验算，而且和教材中利用载荷集度与内力之间的微分关系画剪力图、弯矩图，形成有机的统一。

Analysis of gene differential coefficient ( GST) indicating that genetic variation of Medicago sativa is mainly exits within varieties. This characteristic is related to the breeding system ( out-breeing) of Medicago sativa.

基因分化系数（GST）分析结果表明，苜蓿的遗传变异主要存在于品种内，这一特点与多年生苜蓿的繁育体系（异交）有关。

Her breasts and buttocks illustrated Enneper's surface of negative constant curve differential coefficient of the pseudo-sphere.

她的双乳和臀部是艾纳帕的负恒曲面图和 伪 球面的导数.

But VC itself is difficult to develop complex calculation, such as matrix and differential coefficient etc.

但VC本身对一些复杂数值计算(矩阵运算,微分运算等)问题的开发非常困难.

As a kind of math methods to solve the problem of differential coefficient operation of curvilinear coordinates series, tensor analysis was origin from Gauss' intrinsic ideas.

张量分析作为解决曲线坐标系中微分运算的数学方法，是从高斯的内蕴几何开始孕育的。

On One Method of Solving Function of Known Function to the Differential Coefficient of Intermediate Variable

关于已知函数对中间变量的导数求函数的一种方法

Method of Phase to Height Based on the Differential Coefficient Relationship

一种基于导数关系的相位转高程方法

And solve the differential equation successfully by the method of separating the variables, so determine of the parameters in temperature field expression use the fluid-solid coupling boundary conditions and known conditions. And obtain the coefficient of temperature jump and mean Nusselt number.

然后利用流固边界耦合传热的边界条件和已知热边界条件建立方程组确定参数，并最终计算出温度跳变长度、局部努塞尔数和平均努塞尔数。

The penetration interception problem is expressed as a set of linearized differential equations with time variant coefficients in the intercept plane, which is time variant coefficient terminal control problem.

突防拦截问题表述为拦截平面内线化变系数微分方程，它是变系数终值控制问题。

And C group received decompression; Differential Coefficient of Subsection Function

C组，为减压组；分段函数的导数

The wave model was one dimensional differential coefficient.

波型为一阶导数。

The thermodynamic properties of P_2O_5-SiO_2-Na_2O-Al_2O_3 glass system were investigated by means of differential scanning calorimetry and thermo-mechanical analysis. The characteristic temperature and the thermal expansion coefficient of the system with different SiO_2 contents were then discussed.

采用差式扫描量热法（DSC）和热机械分析（TMA）方法研究了P2O5SiO2Na2OAl2O3玻璃系统的热力学性质，探讨了磷酸盐玻璃中不同二氧化硅含量对其特征温度、热膨胀系数的影响。

Medical Image Edge Detection Method Based on Fractional Differential Coefficient

基于分数阶微分的医学图像边缘检测方法

D-partion of stable range of three neutral time lag differential equation Has been studied and determines the three equation of uniformly asymptotically stable And unstable range in coefficient space.

主要讨论了3类中立型时滞微分方程之稳定区域的D划分法，确定了这3类方程在其系数空间中的一致渐近稳定区域及不稳定区域。