To recognize circular boundaries,a mixed probability density function that can generate the circular spatial point pattern is built up.
为了有效识别圆形边界,构造了圆形空间点模式产生的概率密度函数,并以此概率密度函数为基础,建立了由噪声点去除、混合概率密度函数参数估计与基于BIC的聚类个数自动判别3部分组成的圆形边界识别方法。
The problem of steady flow through reservoirs with elliptical boundary is very important in reservoir engineering,especially for anisotropic permeability reservoirs.
椭圆形边界油藏渗流问题是油气田开发尤其是各向异性油藏工程中具有重要意义的问题 ,但一直没有得到较好的解决。
Researches on heave of circular deep foundation pits with super diameters;
大直径圆形深基坑基底回弹问题研究
Principle of shaft large diameter circular homogenizing silo and characteristic analysis.;
立式大直径圆形均化库的原理及特点分析
Analyzing the working condition of a circular cage collar made from PE pipes,we come to the conclusion that the bending fatigue of the pipe in the radial direction is the main factor and the circumference of the cage collar is constant during deformation.
以圆形框架在直径方向产生20%的压缩变形为极端条件,通过几点假设,将工况条件向试验条件进行转化,提出1种圆形网箱框架用PE管材的弯曲疲劳试验方法。
Through comparing and analyzing several selective projects: rectangle (square), special hexagon and circle, a conclusion is made that in the wireless blind-chess guidin.
文中论述了该系统中的盲棋子空域的划分,通过对几种可选方案:矩形(正方形)、正六边形、圆形的分析和比较,得出了在无线电盲棋导航系统中以正方形作为子空域最优。
Circle in the Expression of Landscape Design;
无论是在传统亦或是现代、东方亦或是西方,圆形在各类设计作品中都大量的存在,它的出现常常伴随着神秘的色彩,并被人们赋予了更多丰富的内涵。
By analyzing and comparing the both punching technology for the rotundity cover on container, a new compound process of the falling-drawing-curlling was adopted by analyzing the rotundity cover's shape and material and size.
分析比较了容器圆形盖的新旧两种冲压工艺,根据圆形盖的形状、尺寸及其材料,经过工艺分析及计算,改用落料-拉延-翻边复合工艺,可以明显提高制件质量、生产效率。