参数

From the functional relationship between the flooding gas and liquid velocities derived from the two-film theory based on the Bernoulli equation,two parameters which are relative to the packing property were investigated.

根据从双膜理论出发由Bernou lli方程得到的液泛气速与液速之间的函数关系，考察了两个与填料有关的模型参数：一个是由填料比表面积a和床层空隙率ε所组成的填料因子a/3ε，另一个是本文定义的填料结构参数。

In this paper, we study characterizations of admissible in the general linear model Y, Xβ,ε|ε～(0,σ~2∑. We demonstrate that an admissible linear estimator is as the conditional generalized ridge-type estimation in the no constraint, equality constraint, inequality constraint general linear model. We study the superiority of this conditional generalized ridge-type estimation, and prove that it is superior to the restricted best linear unbiased estimator in terms of mean squares. We also give the choice of the matrix K.

本文主要研究了一般线性模型Y，Xβ，ε|ε～(0，σ~2∑中参数估计的可容许性特征，得到了一般线性模型在无约束，有等式约束及有不等式约束下，可容许线性估计均具有条件广义岭估计的形式的结论，并且讨论了这一条件广义岭估计的优良性，证明了其在均方误差和均方误差矩阵意义下都优于约束最小二乘估计，给出了参数矩阵K的选取方法。

In probability theory and statistics, the beta distribution is a family of continuous probability distributions defined on the interval [0, 1] parameterized by two positive shape parameters, typically denoted by α and β.

在概率论与统计，贝塔分布是一个连续概率分布上定义的区间[ 0 ， 1 ]参数由两个积极的形状参数，通常是指由α和β。

Abnormal distribution is not rare in practical measurement. Beta distribution contains not only central distribution but also non-central distribution. It is a good method to simplify the research of practical measurement distribution.

为了解决实际测量中的非正态分布的表示问题，本文采用含有两个参数的Beta分布来统示表示多种类型分布，并且解决了该分布的参数、特征值的计算。

Methods According to the Bayesian conjugate prior distribution principle, the estimating methods of prior parameters of the conjugate beta distribution Be of the binomial distribution was given by writing the SAS programs.

根据贝叶斯共轭先验分布原理，对二项分布的共轭贝塔分布中的α、β两个先验参数的确定方法进行分析比较，编写SAS程序确定先验参数。

But,it is still a problem to find the two parameters of the Beta function for an input image to be adaptively enhanced.

Tubbs通过使用规则化Beta函数拟合对比度变换曲线，能实现图像对比度的自适应变换；但使用该方法需确定Beta函数的两个参数，其参数的自适应选择仍是一个较为复杂的问题。

The paper introduces the measurement and research of some beam parameters using tune measurement system for Hefei Light Source, which include the betatron tune, beta function, natural chromaticity, corrected chromaticity, and central frequency.

介绍了利用合肥光源的工作点测量系统进行一些束流参数的测量及其应用研究，这些参数包括工作点、β函数、自然色品、校正色品以及中心频率。

On the basis of diagnosis and measure of multicollinearity,a new biased estimator of unknown parameters called partial ridgeestimator is proposed for Gauss-Markov model.Its properties are discussed,and some important conclusions are drawn.The determination of biased parameter in the PR estimator is discussed too.

基于复共线性诊断和度量的结果，提出了测量平差Gauss-Markov模型参数的一个新的有偏估计，称为基于复共线性诊断和度量的部分岭估计，讨论了部分岭估计的优良性质，提出了岭参数的选取方法。

In order to get the exact value of the Hopf bifurcation point, we discuss the discrete version of the integro-differential equation, and use the approximation parameter as the initial value of the Newton iteration method.

为了得到Hopf参数的精确值，进一步讨论了延迟积分－微分方程的离散形式，利用Newton迭代法，得到了参数的逼近值。

The bifurcation theory on dynamic systems is introduced to the study of the basic geometric properties of redundant robots.

在冗余度机器人机构综合方面，首次提出了根据杆参数的分叉特征，设计工作空间内部无不可避奇异的机器人杆参数的新方法。

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。