分布参数

In addition to measure the refractive index profile of a GRIN lens, we also measure the refractive profile and radius curvature of a Plano-convex lens by means of this imaging ellipsometric technique.

本文将此简式影像式椭圆偏光术应用在非均匀平面材料光学参数之量测，及平凸透镜之量测；我们不但量出了渐变式光纤折射率的径向分布并证明其表面的平整度，另外也量出平凸透镜的曲率半径及折射率。此法可将椭圆偏光术延伸到曲面薄膜量测。

A new method of point estimation of weibull distribution with two parameters is presented by means of methods in grey system theory.

本文利用灰色系统理论中的方法，提出了一种新的两参数威布尔分布的点估值方法，该方法使用累加生成技术，对累积失效率函数的原始试验数据进行处理，建立了估值公式。

Aimed to the problems of difficult installation and low measurement accuracy in high moisture, the grain moisture sensor has improved from the traditional parallel polar plate probe to plane polar plate probe. The plane polar probe with protect pole was used to decrease the affect of the stray capacitance and interference, and some critical parameters of the plane polar probe that influenced sensitivity and accuracy of the sensor were proposed. The finite element method was used to analyze the electric field and capacitance of the plane polar probe.

针对谷物水分传感器平行极板探头安装难度大、高水分测量精度低等问题，将平行极板探头结构改进成为平面极板探头结构，并且通过增加保护极板减小干扰和杂散电容的影响，提出影响传感器敏感性、精度的平面极板探头的几个参数，采用有限元分析方法较精确分析了探头的电场分布和电容。

Hallen type equations combined with almost entire domain polynomial representation of current distribution function are selected to attack the simulation, analysis and comparison of electromagnetic performance of the antenna array under different design parameters.

就高频地波雷达海洋环境监测的一种新颖宽窄波束、软硬件技术相结合的收发共用相控天线阵的设计，选用将Hallen方程与电流分布函数的殆全域多项式展开相结合的矩量法，分析比较了相控天线阵在不同设计参数下的电磁性能，重点分析了互耦的影响以及实施"收发共用"对阻抗匹配的苛刻要求和现有设计在该问题上的技术缺陷，得到了关于该天线阵工程设计的若干结论。

Based on parametric model of signal-multicomponent polynomial phase signal,a novel time frequency kernel is presented.

立足于信号的参数化模型—多分量多项式相位信号，提出了一种新的时频分布并给出了其构造方法。

The case study shows that the method proposed can provide the posterior distribution of parameters of Nash model based on posterior information of parameters.

实例研究表明，该方法能充分利用已知的后验信息获取Nash模型参数的不确定性，得到其后验分布。

It has been found that the MCMC approaches can estimate and derive the posterior joint probability distribution of the model parameters properly.

采用基于实测流量资料估计的置信区间可靠性作为评判标准，实验结果表明：就SMAR模型而言，MCMC方法能够更好地推求模型参数的后验分布。

The results demonstrate that SCEM-UA algorithm is well suited to infer the posterior distribution of Xinanjiang model parameters. The results of calibration and validation indicate that it is a feasible and effective for optimization and uncertainty assessment of Xinanjiang model parameters.

结果表明，该算法能很好地推出新安江模型参数的后验概率分布；率定和检验结果比较分析也表明，应用SCEM-UA算法对新安江模型进行优选和不确定评估是有效和可行的。

In this paper we specify the posterior probability to be Gaussian mixtures and using a standard EM algorithm to fit the corresponding parameters of the mode.

在试验中假设影像的后验概率符合混合高斯分布，并利用EM算法化解模型中的参数。

Bayesian belief propagation algorithm was used to efficiently calculate the maximum of the posterior probability of background with input data.

在建立正确模型参数的基础上，贝叶斯信念传播算法根据图像输入预测当前背景状态的后验分布，并根据预测得到的背景状态对输入图像进行分割。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。