Polar Coordinate System

The discussion on one-dimensional motion of a particle in rotating coordinate system is presented , and the relation of rotating coordinate system and polar coordinate system is obtained . Meanwhile , the physical significance of each acceleration term in polar coordinate system is illustrated .

通过对一维平面转动系中质点运动的一个问题的讨论，分析了平面转动系与极坐标系之间的关系，得到了极坐标系中加速度各项的物理意义。

Construction Problem of Function in Polar Coordinate System

极坐标系中的函数作图

Based on polar coordinate system , an analytic method is investigated .

本文提出了基于极坐标系统的双曲线定位分析方法。

The Research of Measuring Instruments for Angle in Spatial Polar Coordinate System

空间极坐标角度测量仪研究

The general solution for plane problem in polar coordinate system by separate variable method

用分离变量法求极坐标平面问题的一般解

A double - polar coordinate system is established .

建立一个双极坐标系。

A new pseudo-spectral method for solving Poisson equation in polar coordinate system

极坐标系下泊松方程的拟谱方法

A line connecting a point in space to the origin of a polar coordinate system .

空间中的一点连接到级坐标原点的直线。

The polar coordinate system and the polar coordinate translation in view of differential geometry

用微分的观点看极坐标系与极坐标变换

The mesh equations of gears are given by tangent polar coordinate system .

本文给出了切线极坐标下的齿轮啮合方程式。

A discretization equation is derived by using a finite volume method in three-dimensional cylindrical polar coordinate system .

对单相螺旋流流场数值求解的基本方法与有关问题进行了分析。在三维圆柱坐标下，利用有限体积法推导离散方程；

The study on the methods of obtaining the solution of the derivation of the equilibrium equations under polar coordinate system

在极坐标系下求平衡微分方程解的方法研究

This paper proposes a subblock-based image retrieval method under the polar coordinate system for retrieving trademark image .

针对现有的四叉树分块方法的不足，提出了一种极坐标下的分块检索方法。

Movable Polar Coordinate System and Contrate Profiles Bungee Jump Plan for pretty teeth

活动极坐标系与平面齿廓

The difference scheme of torsion problem of a bar with a sector cross-section under the polar coordinate system is derived .

导出了极坐标系下扇形截面杆扭转问题的差分格式；

In this paper , the general solution for plane problem of elastic mechanics in polar coordinate system is deduced by separate variable method .

提出了将谱元方法应用到极坐标系下，利用极坐标系下的谱元方法求解环形空间内自然对流问题。

A method of surveying a complete curve in polar coordinate system by only changing instrument position and back viewing point are introduced in this paper .

本文提出了一种仅变换置镜点和后视点坐标而达到置镜任一点极坐标法测设整条曲线的方法。

Polar coordinate system (α,β) on the surfaces of the cylindrical shell is taken to solve the problems of shells with cutout .

在主壳开孔问题中采用展开面中的极坐标系（α，β）进行求解。

A new pseudo-spectral method based on polar coordinate system was presented to resolve the difficulty in the coordinate singularity and treatment of pressure boundary conditions .

针对拟谱方法在极坐标下遇到的坐标奇异以及压力边界条件难处理等问题，提出了一种新的基于极坐标系下的拟谱方法。

Using polar coordinate system to set out , the coordinate computing formula and the error of its approximate formula are discussed of any point in line .

本文用极坐标法放样，讨论了线路曲线中任一点坐标计算公式及其近似公式的误差大小。

Using the concepts of radial velocity and transversal velocity in polar coordinate system , a problem of pursuant trajectory in kinematics is solved .

利用极坐标系中径向速度与横向速度的概念求解运动学中的一个追线问题。

Third , argument-polar radius curve of polar coordinate system whose pole is geometric gravity is formed , and maximum and minimum value points are searched .

然后以重心为极点，对边缘点极坐标化，形成幅角-极径曲线，在该曲线上寻找局部极大极小值点。

Using coordinate transformation and its inverse operation , deformed gratings and experimental results can be easily analyzed both in Cartesian coordinate system and polar coordinate system by image-processing .

采用坐标变换及其逆变换技术，解决了对圆环变形栅和射线变形栅进行数字图像处理过程中遇到的困难，可以方便地实现变形栅线图和计算结果在两个坐标系统下的分析与转换。

In this paper , the error in conversion of measurements under the polar coordinate system to ones under the Cartesian system is analyzed and an unbiased conversion formula is given .

主要针对情报处理中极坐标数据转换成直角坐标数据之间的误差分析，给出了无偏转换公式。

In this algorithm , the measured value of seeker initially set in polar coordinate system was converted into the rectangular coordinate system for filtering , and the bias was eliminated .

该滤波算法将球坐标系中的测量信息转换到直角坐标系下进行滤波，并消除了偏差。

Major contributions are as follows : All paradox problems in the isotropic elastic wedge are re-solved in analytical forms under a symplectic dual polar coordinate system .

在极坐标辛对偶体系下重新求解了各向同性弹性楔体所有佯谬问题的解析解。

Based on shift theorem of Fourier transform and auto-registration , the algorithm directly estimates the translation with the phase spectrum difference of continuous images of a moving object in a polar coordinate system .

利用傅里叶变换的自配准性质和位移特性，用极坐标形式下连续图像相位谱的差直接估计运动目标的位移。

In plane polar coordinate system , this paper deduces the basic formulas that determine the form of stress functions and puts forward a method for the solutions to the problems in plane polar coordinate of elastic mechanics .

在平面极坐标系中，推导了确定应力函数形式的基本公式.对于弹性力学平面极坐标问题的求解，提供了一种方法。

Comparison between flow rate from velocity distribution measured along arbitrary radius on the section with polar coordinate system and that with time-weight methods shows the relative error is below 0.85 % , meeting the requirement in engineering measurement .

采用极坐标系统测量断面上沿任一半径的速度分布，所得的流量与时间&重量法所得结果相比相对误差在0.85%以下，可以满足工程实用中流量测定的要求。

In this paper the polar coordinate system and the polar coordinate translation are unified to the theory of differential geometry , which also leads to the chain rule in the classical analysis : And the results above are extended to a general situation in the meantime .

本文讨论极坐标系与极坐标变换统一到微分的观点之上，由此也可同样地得出古型分析中的链规则（复合函数的求导法则）：并将上述结果推广到一般情况。