Numerical modeling of infrared radiation properties of exhaust plume by the discrete ordinates method in body - fitted coordinates 贴体坐标系下离散坐标法计算尾喷焰辐射特性
Many measurements show that the methods of calculating coordinates points and counting pixels achieve the accuracy and trustworthy result , also have highly applications 实测结果表明，坐标法和数点法的结果准确可靠，有较高的实用价值。
In this paper a method named inside control in concert with polar coordinate to resolve the problems was presented and demonstrations were given to show how it works 本文提出了一种检测柱体垂直度的方法?内控法配合极坐标法，并用实例加以说明。
It is proposed that the 3d - coordinate method should be used as the solution to the problems caused by narrower construction sites where the traditional methods are not applicable 摘要针对施工场地狭窄，无法运用传统方法进行变形观测的情况下，对深基坑的变形观测提出了三维坐标法。
The maximum coordinates method is applied in this study . euler parameters and cartesian coordinate are used to define the space characters of the double - wishbone suspension system 本课题所采用的是极大数目坐标法，这种方法对的汽车双横臂独立悬架空间位姿采用空间笛卡儿坐标和欧拉参数来描述和分析。
Mobilizable coordinates in the use of the system detection ordinary small dimension measurement precision to repeat : measuring length 、 measuring round coordinate system for the 0 . 3 m , measuring angle coordinate system for the 2 本系统在使用可移动坐标法检测普通微小尺寸测量重复精度达到:测长度、测圆坐标系为0 . 3 m ,测角度坐标系为2 。
The paper gave some methods for calculating the area of anomalistic area on plane , and then deduced the methods for calculating coordinates points and counting grids , and finally the paper gave another method of counting pixels 介绍几种求取平面不规则区域面积的方法，再推演出专用于计算海域面积的坐标法和方格法，并给出一种适合计算机计算的数点法。
This paper studies the ground motion of a triangular hill and antiplane response of a dike with flexible soil - structure interface while impacted by sh waves . the methods of complex function and moving coordinate system as well as a simple model are used here 通过复变函数法和移动坐标法，分别求解了sh波入射时三角形凸起地形对地震动的影响和柔性基础上三角形坝体结构的出平面反应。
And then moving coordinate system is used to transform the solving problem into a " conjunction " problem . finally , the solution of the problem can be reduced to a series of algebraic equations and solved numerically by truncating the finite terms of infinite algebraic equations 利用移动坐标法将问题转化为“契合”问题进行求解，最终归结为一组无穷代数方程组并用截断有限项的方法进行计算。
These methods can be divided into two types . one is the methods based on the ray - tracing technique , such as monte - carlo method , zone method , discrete transfer method ; the other is methods based on the discretization of radiative transfer equation , such as discrete ordinate method , finite volume method , finite element method and so on 目前辐射传递问题的求解方法可分为两类,一类是以射线踪迹为基础的方法,如蒙特卡洛法、离散传递法、区域法等;另一类是基于辐射传递方程离散的方法,如离散坐标法、有限体积法、有限单元法等。
