A new kind of downhole gradiomanometer-photoelectric gradiomanometer has been designed based on the characters of downhole gradiomanometer.
分析了光学材料的光弹性效应及线偏振光的干涉理论,结合井下流体压差计的特点,设计了一种新型的井下流体密度计———光电流体压差密度计。
In this paper, we are mainly concerned with uniform convergence and mean square convergence of the error-density estimator of nonparametric regression in the i.
d情况下非参数回归的误差密度估计的一致收敛和均方收敛,给出了一定条件下误差密度的估计量,fn(x)的一致收敛速度和均方收敛速度。
In this paper,we are mainly concerned with the rate of convergence of the error-density estimator of nonparametric regression in continuous time.
本文研究了连续时间下非参数回归的误差密度估计的收敛速度 ,给出了一定条件下误差密度的估计量 ^fT(x)的均方收敛速度 ,详细证明了以下重要结果 :E ^fT(x) -f(x) 2 =O(T-1/ 4)其中f(x)表示误差过程 {et,t≥ 0 }的未知密度 。