principal function

This paper deals with the function relations of principal stress and principal stain of a thin-walled cylinder varying with time, and the relations between the principal stain rate and the thickness of a thin-walled cylinder, as it is subjected to internal pressure.

给出了薄壁圆筒受内压时，主应力、主应变随时间变化的函数关系，以及主应变速率与圆筒壁厚的联系。

The author discussed a sort of the fully nonlinear second order elliptic equations about the function of eigenvalues of Hessian matrix. Finally, as an application, the Dirichlet problem of spacelike hypersurfaces with prescribed function of principal curvatures in n-Minkowski space is established and solved.

讨论了与Hessian阵本征值函数有关的非线性椭圆型方程.作为应用，对n维Minkowski空间中预定主曲率对称多项式的类空超曲面方程的Dirichlet型问题给出了解的存在性。

For overcoming the defects of the current reckoning models of ammonia synthesis reaction chemical equilibrium constant, a network model based on radial basis function networks and principal component regression ( RBF PCR) was interposed.

针对目前氨合成反应化学平衡常数计算模型所存在的问题，提出一种基于径向基函数网络并结合主成分回归方法的网络模型。

As the special principal party of the E-contract, the legal status of ISP is similar to the function of the post office in traditional contracting.

电子合同订立中还出现了一些特殊的主体，网络服务提供者即ISP，它的法律地位类似与传统合同订立中邮局所起的功能；

Under current, over voltage, overload protection function, DSS, quasi-resonant mode, jitter period principal were all analyzed.

分析了准谐振模式变换器中的欠电流 、 过电压 、 过载保护等功能 、 动态自供电(DSS) 、 准谐振工作、跳跃周期工作原理.

It is concluded that the independent directors system come from entrust agent, the agent theory is its theoretical foundation, and its principal function is to establish strategic agent system through supervision.

主流观点是：独立董事制度产生于委托代理关系，代理理论是其理论基础，其主要作用是通过监督和制定公司战略缓解代理问题。

Firstly, the spectrum data is processed by principal component analysis ( PCA), then, an estimating model based on a Gaussian kernel function is set up using the PCA data and their temperatures.

首先对历史光谱数据进行主成分分析（PCA）处理，再根据PCA特征数据与其表面温度的对应关系建立温度的估计模型，该模型是基于高斯核函数的。

Building the two-way interactive educational system and taking advantage of students principal function and internalized function to improve effect; 6.

五是建立双向互动的教育机制，发挥受教育者的主体作用和内化功能，提高德育和信仰教育的效果；

The paper gives the position vector field of the rotational spacelike hypersurface in Lorentz-Minkowski space. After computing the principal curvatures and solving the differential equation system, it proves the existence of the rotational spacelike hypersurface about given principal curvature function in Lorentz-Minkowski space.

给出（n，1）型Lorentz-Minkowski空间中给定主曲率函数的旋转类空超曲面的位置向量场，通过计算超曲面的主曲率，证明了这类超曲面的存在性。

Then to enforce the principal function of moral subject.

增强道德主体的主体性；

Analyze the application of kernel function in SVM including support vector regression ( SVR), kernel time series prediction and kernel principal component analysis ( KPCA) comprehensive evaluation model.

就SVM的核方法在经济预警系统中的应用进行了分析，包括支持向量回归、支持向量时间序列预测方法和核主成分分析（KPCA）多指标综合评价方法，并给出了数据实验。

Furthermore, the clitoris is obviously the principal female pleasure organ, and it has no reproductive function.

而且, 阴蒂显然为女性性愉悦的的主要器官, 它没有生殖功能.

In the school morality building, the principal function of teachers should be valued.

校园道德建设是一个社会整体道德建设的重要工程之一.

Based on principal component and function transformation analysis, a new method is presented for the sensitivity analysis of electrical power marketing.

提出一种应用主成分和函数变换来分析多影响因素条件下售电市场灵敏度的新方法。