查询词典 distribution parameter

Based on filtering theory, a residual life predict model is set up according to condition information, and a general formula of parameter estimation is deduced using maximum likelihood estimation, thus, when the life distributing of an equipment is known, the model can be rapidly educed by taking the distribution into the formula is educed, and its residual life can be predicted without complex iterative process is predicted.

利用滤波理论，建立了基于状态信息的剩余寿命预测通用模型，并推导出采用极大似然估计法下参数估计的通式，使得在已知寿命服从其他任何分布形式时直接代入通式便可快速地得出其模型，从而预测其剩余寿命，省去了复杂繁琐的迭代过程。

It was found that the multi-parameter model describing the relation of vapor enthalpy and temperature ( Clapeyron-Clausius equation ) is obviously superior to the commonly used two parameters model and the Antoine equation in term of residual square sum and statistic distribution rule of error.

以乙醇为例利用非线性拟合技术和文献报道的实验数据，探讨了纯物质蒸气压和温度关系及其参数的拟合问题。从拟合的残差平方和和误差的统计分布规律考虑，基于蒸发焓与温度关系( Clapeyron-Clausius方程)的多参数模型明显优于常用的二参数模型和Antoine方程

The paper studies the auto-covariance estimation of Gamma distribution by using the asymptotic behavior of student U -statistic,gives the large sample interval estimation for the scale parameter,and carries out the computing simulation according to the method of random simulation.

利用学生氏U－统计量的渐近性质，研究伽玛分布的自协方差估计，同时给出了尺度参数的大样本区间估计，并采用随机模拟的方法进行计算模拟

Now we know that the sampling distribution of our estimate is centered around the true parameter.

现在我们知道估计值的样本分布是以真实参数为中心的。

The so-called relay linear unbiased estimationmethod for theestimation of the scale parameter of the logistic distribution is considered.

本文对Logistic尺度参数还考虑了被称作接力线性无偏估计的方法。

Subsequently, the optimized technology was successfully scaled up to 〓 pilot bioreactor scale by using the parameter simulation method. The scale-down strategy was applied to the 100〓 fermentation tank to ascertain that the determining factor which affects metabolic flux distribution reasonably had changed to the dissolved oxygen control. After resolution of the DO limitation, the optimized technology inhibited the shift on 100〓 production scale correspondingly, notable commercial returns was gained as a result.

随后基于过程参数拟合的方法成功地将抑制代谢流迁移的新工艺放大到12〓规模，并通过规模缩小证实了100 〓生产规模的发酵过程中限制代谢流合理分配的限制性因素已经发生了变化，此时DO的控制成为优化的前提，通过改善供氧条件之后优化的工艺在生产规模也成功的克服了代谢流的迁移，取得了显著的经济效益。

The shortest confidence interval of parameter of Gamma distribution is in practice a question of conditional extremum. It can be transferred to a group of equations that can be solved by a method of numerical value.

Γ分布中未知参数θ的最短置信区间实际上是一个条件极值问题，它能转化成一个方程组可用数值方法迭代求解。

The main content of this course includes collecting and sorting statistical data, static data comparison and analysis; descriptive and inference statistics, time series analysis , statistical index, probability and distribution, sampling, parameter estimation, hypothesis testing;simple , multiple regression and correlation analysis .

重要内容有：统计数据的收集和整理、数据的静态比较分析、统计描述与统计推断、时间数列分析、统计指数、概率与概率分布、抽样分布、；参数估计、假设检验、简单回归和相关的统计推断、多元回归和多重相关分析。

On the problem of model parameter determination, the singularity distribution method is used to derive the expressions for numerically calculating the added mass arised from vibration of the structure under three-dimensional case; The aero-dynamic damping ratio is identified from the testing data based on the methods of empirical mode decomposition, improved random decrement and Hilbert transformation; The reduced-order spectral representation method is also deduced in this chapter based on the technique of proper orthogonal decomposition.

在模型的参数计算上，采用奇点配置法推导了三维情形下结构振动诱导流场附加质量的数值计算方法；联合采用经验模态分解、改进的随机减量法及Hilbert变换对索穹顶结构的气动阻尼进行了识别分析；推导了基于本征正交分解的降阶谱解法。

Base on the classical problem of the theory of optimal stopping──the secretary problem,k-th choice problem is worked out(k managers choose k secretaries ).The optimal stopping rule is given,and we proved that the optimal value of probability is the kth item of Poisson distribution with parameter k.i.e.e￣-K/k!.

从最优停止理论的经典问题──秘书问题出发，构想了K个经理从N个姑娘中各选一秘书的问题，证明了其最优规则，得出了概率最优值是参数为K的泊松分布的第K项，即e￣k￣k／k从！

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。