最小

Judgement and Solution Methods of UMVUE ;2. The maximum likelihood estimate and uniformly minimal variance unbiased estimate of MTTF were made on the one-unit system whose lifetime was assumed to be on GAMMA distribution.

讨论寿命服从单参数GAMMA分布单元平均寿命的极大似然估计和一致最小方差无偏估计；应用BASU定理求出了单元可靠度及串联系统可靠度的一致最小方差无偏估计。

Necessary and sufficient conditions for equalities between a 2 y′y and minimum norm quadratic unbiased estimator of variance under the general linear model, where a 2 is a known positive number, are derived.

给出了一般线性模型下方差的最小范数二次无偏估计相等的充要条件，并且当高斯马尔可夫估计与最小二乘估计相等时，获得了一个相对简单的条件，最后给出此条件应用于抽样调查的一个例子。

Under CLM, OLS is not only BLUE, but also the minimum variance unbiased estimator, that is, among linear and nonlinear estimators, OLS estimator gives the smallest variance.

在经典线性模型假设下，OLS不仅是BLUE，而且是最小方差无偏估计量，即在所有线性和非线性的估计量中，OLS估计量具有最小的方差。

The ambiguity of DOA estimation due to ignorance of the function form of angular signal distribution is analyzed and the DOA estimation without ambiguity is given. 4. A method of DOA estimation of distributed sources is proposed by using the knowledge of the unimodal property of angular signal distribution and independence between different distributed sources.

利用角信号分布函数的共轭对称性，提出了基于噪声子空间的极小最小特征值一维搜索分布式目标DOA估计方法，和基于信号子空间的极大最大特征值一维搜索分布式目标DOA估计方法。

Unstable solution that may exist in SIRT or SART which converges to the Solution of a least-square problem is avoided.

阻尼代数重建技术，这种方法收敛于阻尼最小二乘解，因而克服了收敛于最小二乘问题的SIRT、SART法可能出现的不稳定解。

Based on the idea of tolerance-robustness design,considering the fuzziness of product quality,and taking the ratio of the variance of probability density function of deviation distribution for the close-loop to the probability of high-quality product as design objectives,the objective function of the loss of quality robustness for this tolerance optimization design was established.

在目标函数中，加工成本是优化的一个重要目标，即寻求总加工成本的最小化，同时还要使设计的产品质量稳健性好，即寻求产品质量稳健性损失成本的最小化。

The improved Pareto multi-objective optimization with GA adopts non-dominated ranking, elitist preserve and niche approaches, and proposes individual vector module adaptive function as wash out rule. As an example, two duality functions are used to validate the two algorithms.

通过两个多元函数的最小值优化算例验证，两种方法均获得较为均匀分布的Pareto前沿，并且改进的Pareto遗传多目标优化算法由于采用了小生境技术，使得最优解的分布更加均匀，避免了局部收敛的问题。

The changing rule of the deformed zone and non-deformed zone in the process of bending the vee parts is analyzed.

分析了V形件弯曲过程中变形区与非变形区的变化规律，建立了计算凹模最小深度的公式，并通过数值实例，讨论了工件尺寸与凹模圆角半径对弯曲凹模最小深度的影响。

Considering the equation of flow conservation, the problem of efficient monitoring is regarded as the problem of finding out the minimum weak vertex cover set and the minimum weak vertex cover set based on flow partition for a given graph G which are all proved NP-Complete.

考虑网络节点的流守恒特性，网络流量的有效监测问题可抽象为求给定图G的最小弱顶点覆盖集的问题和基于流划分的最小弱顶点覆盖集的问题，这是NP难的问题。

This P1 Wattmeter is uniquely small for a self contained meter and has a Hold function for airborne logging of Max and Min values. Additionally it is dead easy to use.

这款P1特别小，还带有HOLD功能，记录最大和最小数值，另外它真的是超级好用啊！

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。