The Bayes estimator of the parameter is obtained for the scale exponential family in the case of identically distributed and positively associated（PA） samples under weighted square loss function.We construct the emp...The Bayes estimator of the parameter is obtained for the scale exponential family in the case of identically distributed and positively associated（PA） samples under weighted square loss function.We construct the empirical Bayes（EB） estimator and prove it is asymptotic optimal.展开更多
An obvious characteristic of the baroclinic large-scale motions in the equatorial ocean is that the meridional scale H of motion is far smaller than the zonal scale L. The scaling of motion carefully with this strikin...An obvious characteristic of the baroclinic large-scale motions in the equatorial ocean is that the meridional scale H of motion is far smaller than the zonal scale L. The scaling of motion carefully with this striking characteristic in this paper results in two conclusions, i. e., the Coriolis terms associated with the horizontal component of the rotation vector cannot be neglected in the governing equations; and the use of the absence of heating is not suitable to the equatorial region. In this paper the equatorial β-plane nondimensional governing equations with the small parametersδ_0 andδ_1 have been Obtained.展开更多
采用大型三轴试验剪切仪，对高速铁路路基粗粒土 B 组填料的剪胀特性进行试验研究。结果表明：围压和粗粒含量对粗粒土 B 组填料的剪胀性有显著影响，整体表现为粗粒含量低或围压高时剪缩，粗粒含量高且围压低时先剪缩后剪胀；当围压小...采用大型三轴试验剪切仪，对高速铁路路基粗粒土 B 组填料的剪胀特性进行试验研究。结果表明：围压和粗粒含量对粗粒土 B 组填料的剪胀性有显著影响，整体表现为粗粒含量低或围压高时剪缩，粗粒含量高且围压低时先剪缩后剪胀；当围压小于200 kPa，粗粒含量大于49．31％时，粗粒土 B 组填料存在明显的剪胀趋势，且围压越低、粗粒含量越高，剪胀时轴向应变越小。验证了轴向应变ε21与侧向应变ε3的二次函数对粗粒土 B 组填料的适应性，并在此基础上根据试验结果建立粗粒土 B 组填料关于粗粒含量、围压的剪胀判据方程。ROWE 剪胀方程能很好地反映粗粒土 B 组填料剪胀特性，参数K 可取7～12。展开更多
基金Supported by the Anhui University of Technology and Science Foundation for the Recruiting Talent（2009YQ005） Acknowledgements The authors thank the referee for his/her careful reading of the manuscript and many useful suggestions.
文摘The Bayes estimator of the parameter is obtained for the scale exponential family in the case of identically distributed and positively associated（PA） samples under weighted square loss function.We construct the empirical Bayes（EB） estimator and prove it is asymptotic optimal.
基金the National Natural Science Foundation of China under contract! No. 49676282.
文摘An obvious characteristic of the baroclinic large-scale motions in the equatorial ocean is that the meridional scale H of motion is far smaller than the zonal scale L. The scaling of motion carefully with this striking characteristic in this paper results in two conclusions, i. e., the Coriolis terms associated with the horizontal component of the rotation vector cannot be neglected in the governing equations; and the use of the absence of heating is not suitable to the equatorial region. In this paper the equatorial β-plane nondimensional governing equations with the small parametersδ_0 andδ_1 have been Obtained.
文摘采用大型三轴试验剪切仪，对高速铁路路基粗粒土 B 组填料的剪胀特性进行试验研究。结果表明：围压和粗粒含量对粗粒土 B 组填料的剪胀性有显著影响，整体表现为粗粒含量低或围压高时剪缩，粗粒含量高且围压低时先剪缩后剪胀；当围压小于200 kPa，粗粒含量大于49．31％时，粗粒土 B 组填料存在明显的剪胀趋势，且围压越低、粗粒含量越高，剪胀时轴向应变越小。验证了轴向应变ε21与侧向应变ε3的二次函数对粗粒土 B 组填料的适应性，并在此基础上根据试验结果建立粗粒土 B 组填料关于粗粒含量、围压的剪胀判据方程。ROWE 剪胀方程能很好地反映粗粒土 B 组填料剪胀特性，参数K 可取7～12。
