查询词典 error coefficient

In this thesis, Water Solubility, 1-Octanol/water Partition Coefficient, molecular Total Surface Area, Aqueous Activity Coefficient, Henry Law's Constant and gas chromatogram relative retention times for biphenyl and its 209 chlorinated congeners were studies with holographic QSAR techniques and highly predictive QSAR models were developed. An internal validation (cross-validation) and external validation were performed to evaluate the predictivity and robustness of the HQSAR models. Based on these highly predictive QSARs, the corresponding data of 5 properties of all these pollutants were presented.

应用简化的响应曲面分析来建立显著的预测模型，必须要考虑到空间立体因素的影响；基于分子模拟技术的三维QSAR技术能够建立显著的预测模型，并且有利于对毒性机理的理解；而基于分子全息的QSAR技术建立了具有高度预测能力的QSAR模型，组内交叉验证和组外预测等方法证明模型具有高度的预测能力和稳健性，可以对硝基芳烃这一类分子结构、体内代谢过程和致毒机理都很复杂的污染物进行定量预测。

For the 592 chemicals, the coefficient of determination of the regression model was as high as 0.9696 with a mean absolute error of 0.37 log-unit.

对所有592种化合物而言，模型的可决系数高达0.9696。估算结果的平均绝对误差仅为0.37个对数单位。

The test results of 20 blood samples detected on different hematological analyzers were analyzed by a q test which indicated that there were no statistical differences between blocks（P＞0.05）. The correlative coefficient was over 0.97 and the relative deviation was within the range of allowable error.

白细胞分类中，中性粒细胞和淋巴细胞在各比对仪器之间以及仪器与手工分类之间的相关性较好，而嗜酸粒细胞、嗜碱粒细胞和单核细胞，不论在各仪器还是仪器与手工分类之间，都存在较大的试验误差（P＜0.05，P＜0.01）。

The average result for the coefficient of thermal expansion is within 1.8 percent of handbook values for this material, with a possible error due to apparent magnification drift of 9 percent.

这种材料在手册中热膨胀系数是1.8%，由可能的表面误差造成了9%的误差

Coefficient distribution of the APIDCSF is similar to that of circular quincunx Neville filter and its interpolating performance outperforms the Neville filters with high orders vanishing moments.The aim of bidimensional interpolating is to diminish the error between the true value and the estimated one.

二维内插的质量是以预测值与真值之间的误差来衡量的，按照最小均方误差的准则，利用二维自相关函数模型和环形内插滤波器的系数分布特点构造了最小均方误差意义上的环形最优内插器，实验证明了全相位离散反余弦内插器近似于最优内插器。

Taking a carborundum brick of which the thermal conduction coefficient was given as specimen, the measuring error of it is less than 8%.

通过测量已知导热系数的碳化硅砖的导热系数，得其误差小于8%；通过对同一试样的两个小试样进行平行测量，得其相对偏差小于3%。

The coefficient of determination and mean residual error of the final model were 0.993 and 0.239 log-unit, respectively.

最终模型的可决系数为0.993，平均误差为0.239个对数单位。

Coefficient of determination and root-mean-square error were used as criteria for best model.

结果表明，反射率倒数的对数lg(1/R)是估算土壤重金属元素含量最好的光谱指标，尤其是Cd和Pb，检验精度R超过0.82。

Techinque such as coefficient of determination, parameter hypothesis testing of models,root mean square error .

整理并修正各种近红外分析模型的精度评价标准、方法，包括评价模型拟合度的决定系数，回归参数的假设检验；检测模型预测精度的均方根误差及残差分析。

The model gave an excellent fit for all the experimental data points with values for the coefficient of determination of greater than 0.9943 and the standard error of estimates lower than 0.018035 (90 W).

示范了一个很好的适合于所有的实验数据点与价值，为决定系数大于0.9943和标准误差的估计低于0.018035 （ 90 W ）等。

Don not attempt to do something which you can not to do.

不要企图做那些办不到的事情。

The expression of CTGF and TNF-αweredetected by immunochemistry and the number of Clara Cells was calculated.

光镜下观察肺组织的病理变化，采用免疫组化染色观察肺组织中结缔组织生长因子和肿瘤坏死因子-α的表达和Clara细胞的数量。