variance analysis

A fiber-grade PBT was prepared from purified terephthalic acid by esterification. The effect of the performance of PBT on the spinnability was discussed by variance analysis. The influential factors on the terminal carboxyl group content of PBT were studied by orthogonal experiments.

采用精对苯二甲酸酯化法制备纤维级PBT，利用方差分析方法比较了PBT性能对可纺性的影响，并对PBT端羧基含量的影响因素进行了正交试验。

Optimum Ratio is obtained by orthogonal test and variance analysis for different factors and levels.

通过对型砂各因子和水平的正交试验和方差分析,得出了最佳的配比.

Analysis of covariance is a combination of regression analysis and variance analysis.

协方差分析足把直线回归与方差分析结合起来应用的一种方法.

Based on the features of regional tests, feasible variance analysis model, computing formula and algorithm design for regional test statistics have been proposed.

结合小杂粮区试特点，研究了区试数据统计分析的方差分析模型和计算方法，进行了算法设计。

We got the normal distribution map through analysis the resistance variance of the F3 population.

对F3代数据进行方差分析，得到其正态分布图。

T-test and Duncan variance analysis were adopted in F _ 1 and F _ 2 monosomic analysis.

单体分析中F_1世代采用t - 测验,F_2世代采用Duncan方差分析法.

Check, calculate and update item cost of inventory, responsible also for inventory valuation and variance analysis.

负责库存成本的审核 、 计算和更新,执行库存的估价和差异分析.

RSW process was optimized and confirmed based on two-factor variance analysis.

通过双因素方差分析优化并确定了铝合金点焊工艺规范.

Inventory movement and variance analysis.

存货变动和差异分析.

Using orthogonal experiment and variance analysis, the optimum cast processing parameters of the alloy were obtained.

采用正交试验和方差分析方法确定了该合金的最佳铸造工艺参数.

According to the basic rules of response surface method and center utilized design method, response surface model for performance evaluating of electrode heat convection is built. Leading in the variance analysis and F test, validation of model significance is done.

根据实验回归分析的响应面法和中心组合实验设计法的基本规则，建立面向冷却率的电极对流换热性能评价的响应面模型，并引入方差分析和F检验，验证模型的显著性。

As a sample of the 184 listed companies in the Shanghai Stock Exchange, selected financial data of companies in 2003-2009, use single factor analysis of variance, LSD test and panel data fixed effects model.

以在上海交易所上市的184家上市公司为研究样本，选取2003-2009年的公司财务数据，采用单因素方差分析和LSD检验以及平行面板数据的固定效应模型进行假设验证。