径向坐标

当静态的具有球对称性的理想流体的密度是径向坐标的函数时，OppenheimerVolkoff（OV）方程成为Riccati方程。

When the density of a static spherically symmetric perfect fluid is a function of the radial coordinate , the Oppenheimer Volkoff ( OV ) equation turns into a Riccati equation .

任意次幂径向坐标算符矩阵元计算公式

A general formula for matrix elements of any power of radial coordinate operator

结果表明：1.星的密度分布n不仅是径向坐标，的函数，而且是比热比r的函数。

Results are : 1 . The distribution of stars is not only the function of radial coordinates γ, but also the function of the ratio of specific heat γ;

角度部分的DVR基组选择勒让德多项式形式，而径向坐标采用正弦函数形式。

The angular coordinate used a DVR based on Legendre polynomials and the radial coordinates utilized a DVR based on sine basis functions .

结果肿瘤免疫竞争的结果在不同径向坐标处存在很大差异。

Results The tumor-immune competition various obviously among different locations .

在二维径向坐标映射基础上，引入雷达图的面积特征作为第三维，构成三维径向坐标映射。

The area of radar chart is introduced to2D radial coordinate visualization to expand it to3D space .

在分析中将实心圆板的应力函数（或位移）展开成径向坐标的幂级数，其系数为厚度方向坐标的函数。

The stress functions or displacements are expressed in terms of power series with respect to the radial variable , with the coefficients being functions of the axial variable .

对于高斯型分布的微细离子柬注入，对其径向坐标的随机抽样作了模拟分析，结果表明横向分布与束半径密切相关，并且横向能量淀积的峰值位置就在束半径附近。

The results show that the transverse profile is correlative with the ion beam radius , and the top position of the energy deposition distribution is near the ion beam radius .

对弹性平面扇形域问题，将径向坐标模拟成时间坐标，通过适当的变换，将扇形域问题导向哈密尔顿体系。

The radial coordinate is simulated as the time coordinate , the governing equations of plane elasticity in sec - torial domain are transformed into Hamiltonian form via variable substitutes and variational principles .

同时实现极坐标变换和径向对数坐标变换的光学方法

Optical method for completing simultaneously polar coordinate transfer and radial logarithmic transfer

用Boussinesq近似下的轴对称径向二维柱坐标系中的线性扰动方程组，讨论了圆形大气涡旋系统中扰动的惯性重力不稳定和对称不稳定。

Inertia-gravitational instability and symmetric instability of the disturbance in circular atmospheric vortex systems are discussed by using linear perturbation equations in a two-dimensional axisymmetric cylindrical coordinate under Boussinesq approximation .

作者推导了Percus-Yevick硬球径向分布函数在坐标空间的解析表达式，根据Camahan-Starling状态方程，采用一个简单方法对其进行了修正，并给出了修正后的普拉斯变换解析表达式。

The analytic expression for the Percus-Yevick radial distribution function of hard spheres is derived at coordination space , in terms of the Carnahan-Starling equation of state , a simple method is utilized to improved the expression , and the Laplace transformation for the improved expression also is derived .