查询词典 variance analysis

These data were analyzed with analysis of variance and stepwise regression.

单因素方差分析结果表明，接触组的收缩压低于对照组(P 0 1)，而舒张压均高于对照组(P 0 5 )，多元逐步回归的结果显示接触苯的浓度是导致血压升高的主要影响因素之一。

Analysis of molecular variance indicated that 43.08% of the variation was from genetic differences between subspecies.

分子方差分析表明，香稻材料中总变异的43.08%是由于亚种间的遗传差异引起的。

Statistical Package for the Social Science was adapted for descriptive statistics, analysis of variance , test of independence, and spearman correlation, to explore the efficiency of organic rice farm management in Taiwan.

农场经营者对病虫害防治技术、杂草控制、市场资讯和行销等专业技术，仍需要农政单位与验证机构之协助与辅导。经与惯行栽培比较，显示水稻有机栽培，虽然肥料费用高於惯行栽培大约3倍，但因稻谷售价较约高出2倍。

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的"同物异谱"现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被"红边"范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

The data was statistically analyzed with SPSS11.0 software package for a parametric one - way analysis of variance and two -sample t test.

采用SPSS11.0软件包对实验数据进行单因素方差分析及两样本t检验。

Intra-/inter-specific spatial pattern: Four distribution measurements (variance/mean ratio, chi-square test, Clark-Evans index and Haberman residual analysis) were used.

分布格局分析采用四种方法：方差均值比、x〓检验、Clark-Evans指数和Haberman剩余分析，前2种属样方法，后2种属无样地法。

Inference and Hypothesis Analysis of Two Populations - including Difference of the Mean, Ratio of the Variance, Difference of Proportions.

推理和假设分析两个种群-包括不同的平均，比例的差额，差额比例。

The analysis results show that the relationship of the phase plate's Fourier spectral T2 and the far field distribution variance is in direct ratio.

利用数值模拟计算了随机生成的两个波前分别通过两个位相屏后的远场分布，模拟结果证实了位相屏用于随机相位畸变激光束匀滑的可行性，并显示了匀滑效果。

The effect of important factors on beer buffer capacity and pH, meanwhile, the optimum proportion of buffer substances at the maximum beer buffer capacity can be determined by means of orthogonal experiment with many targets and analysis of variance for correlation ratio.

通过多指标的正交实验及方差分析，确定了影响啤酒缓冲容量和pH值的主要因素以及缓冲容量最大时缓冲组分的最佳比例。

Repeated measures analysis of variance was used to study the changes in the VAS and WOMAC scores in the three groups.

反复措施方差分析是用来研究的变化，在VAS和womac分数在三组。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。