最大偏差

The mathematical model was verified in experiment with the method of indirect squeeze cast Archimedean spiral proof sample. And the experimental results show that the maximum deviation between the theoretical value and measured value is less than 8%. This model can be used for quantitative analysis and estimating effects of the craft factors on the filling ability, and can also predict the maximum filling length. It has the important reference value to design the semi-solid alloy rheoforming technology and mould.

采用间接挤压铸造阿基米德螺旋线试样的方法对该数学模型进行了实验验证，实验结果表明：理论计算值与实验测定值之间的最大偏差小于8%；该数学模型可以定量分析和估算工艺因素对充型能力的影响，并可预测充型极限长度，这对半固态合金流变成形工艺设计和模具设计都有参考价值。

The results showed that azeotrope didn′t appear and the thermodynamic consistency of the experimental data was examined by the Herrington area method.

分别采用Wilson方程和NRTL方程对实验数据进行了关联，计算结果与实验数据均较为吻合，其中NRTL模型的关联结果较好，乙酸异丙烯酯汽相摩尔分数的最大偏差为0.0036，平均偏差为0.0010。

The original design of coaxial maximum deviation of 0.1mm, measured concentricity deviation after removal of about 0.4mm.

原设计中同轴度最大偏差为0.1mm，拆除后实测同轴度偏差约为0.4mm。

The total rms of calculationalvalue of CHF, by use of proposed flow direction factor is reduced by 20% to 46%, and the maximumerrors and 95% error band are also decreased to a certain extent.

修正后，试验值与计算值的总均方根偏差减小20％-46％，偏差带和最大偏差也有不同程度的减小。

Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.

分析了现有测试方法的优缺点，提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构，分析得到了推进剂传热的物理模型和数学模型，设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序，给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布，分析了温度场的分布规律和影响传热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序，求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差，得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处温度及两者之间的最大偏差与均方差，讨论并确定了能代表130和航90推进剂温度的特征点的位置。

For each objective, we propose two practical criteria for setting up bypasses: Maximum Difference Removal and Largest Deviation Removal .

数值结果表明最小二乘目标和除去最大偏差规则的组合是最好的方案。

The thinking of this method as follows:Firstly,using single evaluation methods to evaluate.If the evaluation results aren\'t same,the Spearman rank correlation coefficient is used to calculate the correlation among the results of single evaluation methods.Based on the results,the traditional combined evaluation methods are used to combine the results of the single evaluation method.If the results of the upper combined methods are not same. Here the combined method evaluation indexes,such as Spearman rank correlation coefficient,correlation degree,the max deviation,average deviation,are used to evaluate the upper four combined evaluation methods.The entropy method is used to calculate the weights,and then get the final evaluation result.

首先，采用单一综合评价方法进行评价，对于不一致的评价结果，通过Spearman等级相关系数验证各单一评价方法间是否具有相关性；(来源：4dbdABbbC论文网www.abclunwen.com)对存在相关性的单一评价方法采用组合评价法对其结果进行组合，若所得评价结果仍不一致，采用Spearman等级相关系数、关联度、最大偏差、平均偏差对组合评价方法的组合效果进行评价，最后运用熵权法对上述组合评价进一步组合得到最终评价结果。

For additive attributes, two optimal objectives are proposed: Least Square Approximation and Maximum Deviation Minimization .

对加性属性引入了最小二乘和最大偏差最小两种优化目标并讨论了最优解的计算，同时提出了除去最大差值和除去最大偏差两个建立直联链路的启发性规则用于进一步提高精确程度。

Results: The high plasma osmotic pressure caused by glucose would lead to the artefactual erythrocyte swelling (maximum CV is 63.04%). And the rise caused by sodium chloride or urea would not show an obvious effect in MCV detection (CV.5%).

结果：由葡萄糖导致的血浆渗透压升高使MCV测定值的假性增高（最大偏差可达63.04%，由NaCl及尿素导致的血浆高渗压对MCV测定的影响不明显（偏差＜1.5%）。

On condition that the critical temperature and critical density or critical specific volume are known, the density of saturated liquid can be calculated with high accuracy.

利用该方法在已知临界温度和临界比容或临界密度的条件下，可以对所有乙烷系氟里昂的饱和液体密度进行推算，该方法推算的平均偏差不超过1%，最大偏差不超过1.5%，可满足CFCs替代物研究和应用的需要。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。