查询词典 distance formula

We calculate the nonexchangeabilitymeasures of Copula CU and CL, the bounds of Copulas when we possess the valuesof some points, construct four Copulas with maximum nonexchangeability, reveal thestructure feature and property of the four Copulas, and give the calculating formula ofnonexchangeability for the LP distance.

给出了在一般的LP距离下不可交换性度量的计算公式。

The physical maps of mtDNAs from N.taihuensis Chen,Salvelinus taxa and Salmo salar were analyzed.Genetic distances between mtDNAs were calculated by the formula of Nei and Li(1979).Phylogenetic reconstruction method,UPGMA,was used to analyze the genetic relationships and the molecular dendrogram was established and revealed:the genetic distance between Salvelinus taxa and Salmo salar is 12.23% and that between N.taihuensis Chen and Salvelinus taxa-S.salar is 21.36%.Thisc indicates that Salangidae diverged from Salmoninae earlier.

比较了鲑形目3种鱼的线粒体DNA物理图谱，根据限制性位点差异法计算它们之间的遗传距离，利用UPGMA聚类分析法构建分子聚类图，结果表明：红点鲑属与大西洋鲑先聚在一起，再与太湖新银鱼相聚，前两者间遗传距离为12.33%，亲缘关系较近，太湖新银鱼与这两者间的遗传距离为21.36%，亲缘关系较远，表明银鱼科与鲑科分离较早。

A weighted Hausdorff distance image matching algorithm based on extracting bifurcating points on feature image is proposed. The corresponding weight formula is also put forward.

提出了一种基于特征图像分支点提取的加权Hausdorff距离图像匹配算法，并给出了相应的权值求解公式。

Compared with the linear concentration area-distance relation rational formula, the new one is more reasonable and practicable.

本文将汇流面积进行曲线概化，用以改进矩形概化存在的缺陷，使公式更合理更接近实际情况。

By measuring the longitudinal dispersivity α〓 of several sandy media with different grain size distribution in different transform distance L through sandy column; the formula of α〓=α〓 is obtained, this provides a method of solving scale-effect in the numerical model and in the practical application.

3通过砂柱试验测定了几种粒径分布不同的砂性介质在不同运移距离处的纵向弥散率，并得到计算不同粒径砂性介质随运移距离变化的纵向弥散率公式，在实际应用和数学模型中可作为解决尺度效应问题的一种方法

In well completing test for gas wells of Feixianguan Group with high sulphur content, the well test interpretation can't be conducted until the pressure data are calculated with gas column calculating formula because the distance between the pressure testing point and the central part of the formation is too big.

川东北飞仙关组高含硫气藏气井在完井测试过程中，压力测点位置与产层中部的距离较大，需将压力数据用气柱压力计算公式折算后再进行试井分析解释。

Based on band types of Per.Est.and soluble protein,the authors caculated their genetic similar coefficient and genetic distance by using the formula of Forguson and Aquado ＆ Avise.

根据其中的PER、EST和可溶性蛋白谱带的分布特征，用Forguson和Aquado＆Avise的公式分别计算其谱带的相似性系数和遗传距离，以类平均法进行了聚类分析。

The mathematical relation formula is derived from the train running speed,distance and the output voltage frequency of tacho generator.

推导了列车运行速度、走行距离与测速发电机输出电压频率的数学关系式，给出了利用CMOS数字集成电路和频率合成原理实现上述关系的电路框图，并对其速度接口电路、轮径输入方法及频率合成电路、分频电路和BCD比例乘法器电路、显示电路、基准频率发生电路、电源电路等作了分析与说明。

The paper introduces the common depressing roll apparatus in pipe manufacture engineering,analyses the motion and the mechanical state,derives the calculation formula of hydraulic piston travel about the distance to control the idler,analyses the parameters on stroke,gives the value range based on practical experience,then determines the range of hydraulic pressure tension.

文章介绍了在管加工工程中常用的升降托辊机构，通过升降托辊机构的运动分析和力学分析，推导出控制托辊升降距离的液压行程的计算公式，分析影响行程设计的各参数的大小，并根据实践经验给出有关参数的取值范围，确定液压拉力的大小。

For this reason, it is more meaningful to map the objects onto a time-distance space, where each object Formula attention!!!

因此， 它是意味深长的映射对象时间距离空间，各个对象惯例注意！！！

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。