变异系数

Author considers how to define the spatial distribution of point sets by using the coefficient of variation of the area of Voronoi polygon and makes its application.

探讨了根据Voronoi多边形面积的变异系数来分析点状目标的空间分布形式的方法并进行了应用研究。

To define the spatial distribution pattern of point objects, a new approach is introduced, which employs the variation coefficient CV of the area of Voronoi polygons.

：点集的Voronoi图是对点集的一种空间分割方式，不同分布的点集可以形成Voronoi多边形面积的不同变化，可以通过计算点状目标的Voronoi多边形面积的变异系数方法，来分析点状目标的空间分布特征。

By contrast , the paper calculated the reliability index of the abutment after changing variable quotiety of the stochastic variable

作为对比，本文还在改变各随机变量变异系数的前提下，计算了坝肩岩体各高程的可靠指标。

RESULTS: The best linearity of test was between 0.5-10 ng/mL. The intra-assay coefficient of variation was 8.17% and inter-assay CV, 9.72%.

结果：该方法最佳线性范围：ASP浓度0.5～10ng/mL，平均批内和批间变异系数分别为8.17%和9.72%。

The SPSS program was performed to test normality of the dataset, variance homogeneity between the groups, coefficients of variation and analysis of variance.

对全部杂交信号点的Cy3和Cy5背景信号值，用SPSS软件进行数据转换、正态性检验、方差齐性检验、变异系数分析和重复数据的方差分析。

For the hip, they were combined BMD and combined bone sizes of femoral neck, trochanter and intertrochanteric region.

骨密度仪对腰椎和髋部的骨密度测量值的变异系数分别为0.9%和 0.8%。

Essay 2 of this study investigates how background risk affects households' insurance purchasing decision, expenditure share and amounts of insurance by using data of Survey of Family Income and Expenditure in Taiwan. Using the income risk as the proxy for background risk and controlling other wealth and demographic factors, the findings suggest that insurance expenditure is positively affected by uninsurable background risk.

第二篇研究主要探讨家计单位保险（包括人寿医疗险及产物保险）之购买决策、消费比例及支出金额是否受到背景风险（以所得变异系数及标准差及减薪厂商比例等所得风险变数作为代理变数）之影响，并实证估计各种保险之所得弹性。

According to the sensitivities of variance coefficients and relative range of soil properties, we found that nitrate, available phosphorus, labile organic matter, urase, invertase, and organic matter can be used as the assessing index, which can evaluate soil quality under various re-vegetation ecosystems in the Loess Plateau.

根据变异系数和相对极差的敏感性发现在定量评价黄土高原不同植被恢复生态系统土壤质量时，可选择硝态氮、速效磷、活性有机质、脲酶、蔗糖酶和有机质等极敏感和高度敏感土壤性质作为评价指标。

New socialism countryside; evaluation index system; AHP; variation coefficient method; fuzzy evaluation method

社会主义新农村；评价指标体系；层次分析法；变异系数法；模糊评价法

The content of mineral elements in ripe fruits of M.sieversii from 78 seedings at Mohe Town,Gongliu Country were analyzed using Atomic Absorption Spectrophotometer.The results indicated that M.sieversii seedings presented considerable genetic variations in content of mineral elements with the range of variation coefficients from 24.2% to 54.0%.So it has large potential for further selection.Four elite seedlings were selected,namely large fruit type,high Ca content type,high Zn content type and high damascenone content.As the predominant component of Ily wild fruit tree forest,Malus sieversii had occupied an area of 9300ha.But the inherent reproduction system of M.sieversii and genetic diversity of the species were destructed in different degrees,as a result of farming assart,over grazing and damage by Agrilus mali.

上述结果支持&新疆野苹果可能是栽培苹果祖先种&的结论；②对巩留县莫舍乡的新疆野苹果78个实生株系果肉组织Ca、Mg、Fe、Zn、Cu、Mn6种矿质营养元素进行测定的结果表明，每种矿质元素含量单株间差异显著，变异系数在24.2％～54.0％，遗传多样性丰富，进一步选择的潜力很大；③根据新疆野苹果果实形态、香味物质和矿质元素含量等的测定结果，初步筛选出了大果型、高钙型、高锌型和大马酮型等4个特异性状单株；④调查发现，由于农田开垦、过度放牧以及苹果小吉丁虫的蔓延危害，目前伊犁野果林面积逐年减少，野苹果固有的繁育体系和遗传多样性受到不同程度的破坏。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。