relative variance 中文意思是什麼
relative variance
解釋
相對方差-
Then discusses its properties, such as biased property, relative efficiency of generalized variance and superiority comparisons between generalized ridge estimation and generalized least squares estimation. shows iterative algorithm based on the mean dispersion error
該估計雖然具有偏崎，但其估計精度具有良好的性質，如：有偏性、方差一致最優性、相對于廣義最小二乘估計的廣義方差效率、 mde ? ?有效性等。 -
But this method could n ' t reflect the influence of the variance of pile capacity on capping beam internal force and the partaking of soil to the load. combined with the item " the optimal design theory and research of pile capping beam " financed by natural science fund of hunan province, a new method which can consider the pile - soil interaction and tide over the disfigurement of the winkler soil model is used to adjust the foundation base reactions in this paper. by this method, the proper solution about the internal force of capping beam can be achieved and the relative stiffness and the relative position of soil spring are thought out well
本文結合湖南省自然科學基金項目「樁基承臺梁優化設計理論與方法研究」 ，考慮梁下土體和基樁對承臺梁的共同作用，提出了能對梁下地基反力進行自動調整的一種新型方法，其克服了文克爾地基模型所存在的缺陷，該法在調整過程中，充分考慮了梁下各土體彈簧之間的相對剛度，相對位置，更接近承臺梁的實際工作情況，有利於獲得承臺梁內力的正確解答。 -
All these estimates are feasible unbiased estimates. we use the quotient of the determinant of the variance - covariance matrix of the feasible unbiased estimates, that is, a kind of relative efficency to compare these esti - mates. the results have instructive significance for practice
我們應用這些估計的協方差陣的行列式之商，即一種相對效率比較了這些估計的優劣，所得結果對實際應用具有一定指導意義。 -
The key thinking is : a producer could observes the variance of its product price, but he does not know that this is relative price variance or general price. the variance of the relative price change the output, but the variance of the general price would not change the output. rational reaction of the producer is, consider a part of variance is general prices movement, the other part is the relative pric
其中心思想是：當一個生產者觀察到其產品價格的變化之後，他不知道這是其產品的相對價格變化，還是總價格水平的變化。相對價格的變化改變最優產量，而總價格水平的變化不改變產量。該生產者理性的反應是，把這種變化的一部分歸于總價格水平的上升，一部分歸于相對價格的上升，因而增加一點產量。 -
The image segmentation is done with the approach of region growing based on block mean and variance. considering the size of extracted objects and their relative position information, get rid of the " noise " objects and merge the meaningful fragmentary regions into their corresponding bigger ones. finally all pixels in non - object blocks are classified into their corresponding adjacent objects
圖像首先被分成合適大小的子塊，子塊的色彩均值和方差值作為像素群的屬性，用基於子塊的區域生長來進行圖像分割；根據提取出的對象大小以及它們的空間位置關系，去除掉過小的噪聲對象同時將有意義的小對象合併到其所屬的大對象中；最後處于邊界的子塊將逐像素地歸類到對應的相鄰對象中。 -
Results show that relative standard deviation ( rsd ) of prediction value will become larger from 2. 5 % to 4. 72 % with energy decreasing form 100 % to 18 %. it is demonstrated that energy will not significantly affect predictive power by analysis of variance, because 3 samples f - value is 1. 62, 3. 02 and 2. 23 that all less than critical value f0. 05 = 3. 35
不同能量下的預測值與化學值相關直線的t檢驗（ = 0 . 05 ）表明各相關直線均無顯著性差異；模型預測值的方差分析（ = 0 . 05 ）表明儀器能量變化並不會使未知樣品預測值產生顯著性差異。 -
Design : the medline and the cochrane library databases were searched for studies conducted from 1966 through 2005. relative risks were pooled by using an inverse - variance weighted random effects model
設計：搜索medline和冠心病圖書館數據庫中從1966年到2005年的研究，採用一種反變量加權的隨機效應模型計算相對危險度。 -
By driving expressions and using the method in numerical integration, the results of numerical calculations are analyzed, discussed and contrasted with different conditions, and they showed that there are evident differences in the mean attenuation, scattering, and back scattering cross sections of oblate spheroid particles when the variance is so small that it is near to zero namely it is the same as the rotatory axes are parallel with one direction and when h - polarized and v - polarized incident waves happened. these differences are depended on the relative differences in the average orientation of rotatory axes and the polarized directions of incident wave
通過公式推導和數值積分計算並對結果做了討論和分析，對比各種情況表明：扁橢球粒子群在方差很小接近為0時，與粒子群旋轉軸一致取向的情況相同，入射波水平極化和垂直極化時的平均衰減截面、平均散射截面、平均後向散射截面有明顯的不同，這決定於旋轉軸平均取向和入射波極化方向的相對差異。
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