查询词典 most powerful test

A Uniformly Most Powerful Test is applied to the composite hypothesis testing of leak signal With little prior statistical knowledge.

给定误警概率和漏报概率，施行具有一致最大功效的似然比检验(Uniformly Most Powerful Test，UMPT)。

A binary composite hypothesis test model with unknown and stochastic parameters was constructed.The sequential probability ratio test with the uniformly most powerful effect was provided for white Gaussian process.This novel method was used to detect the distant series of pipe mass flow difference of leakages produced in stationary and non-stationary operation situations, respectively.

建立了以泄漏信号的幅值为随机参量的二元复合假设检验模型，提出了具有一致最大功效的序列似然比检验方法，并进行了平稳观测序列强泄漏信号和非平稳观测序列弱泄漏信号的检测。

An sufficient condition under which the exact F test is uniformly most powerful unbiased test is discussed.

对于给出的精确的F检验给出检验存在条件以及是一致最优无偏检验的条件。

Today's topic is the implementation of ultra-high-altitude fly much "super high-altitude fly big table" at the flight altitude above 30,000 feet is the structural strength of aircraft reliability and the chatter of the most powerful test.

今天要执行的课题是超高空大表飞"超高空大表飞"的飞行高度在3万英尺以上，是对飞机结构强度的可靠性和颤振性最有力的检验。

The uniformly most powerful test can exactly judge leakage signals of above both situations and obtain the detection probability of 95 percent.

对以上两种情况无须预先假设可能发生的有关泄漏量统计知识，利用该方法即能做出准确判断，检测概率均达到95%以上。

Although the study arrives at the same conclusion as earlier work, its massive size makes it statistically the most powerful test yet of this question and tough to refute, say experts.

专家们称：尽管该研究跟前期研究工作得出的结论相同，但是对于这个有争议的问题来说，巨大的规模使其在统计上成为最具说服力的试验，不易被推翻。

Moreover, the actual allele frequency of most varieties deviates far from Hardy-Weinberg equilibrium. All PPB、na 、I、h、Gi and Fst have proved to be the references to elucidate that ISSR is a most powerful tool to analyze genetic diversity, compared with the RAPD marker and the allozyme marker is less strong ordinally. We could divided the 70 samples into A, B, C, D and E five groups using three methods according to genetic distance clustering. There is a bit displacement for few varieties in different clustering maps, but the most are similar to morphological analysis despite that there is still a great difference among cultivars in the same one group. The above results imply that the three methods have the different sensitivity and resolution in genetic distance analysis of close varieties. The Mantel test indicates that the results from the three kinds of markers have the significant correlation, which demonstrates that the number of the used three kinds of markers is enough to exactly detect the diversity of all 70 samples to ideal extent. And these methods can be used to evaluate the diversity of the whole group using the miscellaneous samples instead of the individual sample, of the Gerbera jamesonii are mainly from tissue culture plants. In conclusion, the above study results provide a reference for the application of three kinds of molecular markers to molecular marker-assisted breeding of flower. 2. The genetic diversity among the eight introduced cut-flower varieties of Ranunculus asiatica was analyzed by the ISSR markers. Based on the genetic clustering tree, all the colorful flower varieties are clustered into one group, and the white flower varieties into another group. Moreover, among the former group the yellow flower varieties are clustered into one sub-group, and the reddish flower varieties, such as rose color, pink, nacarat, are clusetered into another sub-group.

由三种分子标记的分析结果可以看出，等位基因平均值、观察杂合度、Fis值、Fit值皆较高，表明非洲菊等位基因较丰富，杂合基因偏多，且绝大部份品种的实际等位基因频率在品种内偏离了Hardy-Weinberg equilibrium；PP8、na、Ⅰ、h、Gi及Fst皆表明，ISSR检测遗传多样性的能力最强，其次是RAPD，等位酶最低；根据遗传距离进行聚类，三种方法都把70个品种分成A、B、C、D、E五个大组，每一组中除少数品种发生位移外，大部份品种分类结果相似，且与形态分析结果有相似性，但在每一组中，品种间的聚类差别较大，表明这三种方法在近距离品种间检测遗传变异时灵敏度及分辨力不同；Mantel检测表明，三种标记的分析结果有显著相关性，表明所用的三种分子方法的标记数量已经可以相对无偏地检测到70个品种间遗传变异；非洲菊为组培苗，三种标记的检测结果皆表明，混合样品可以作为个体样品的代表，对整个居群的遗传多样性进行评价；这些研究结果可为三种分子标记方法在花卉分子辅助育种中的进一步应用提供借鉴。

The most powerful tool of tribology study is experiment and all kinds of friction testing system is designed and manufactured for friction test.

但在这些摩擦试验系统上都无法实现摩擦速度实时改变的试验，为了验证摩擦速度变化对摩擦磨损情况的影响，同时也为了研究周期性波动摩擦速度变化下的摩擦材料性能和特点，从探讨非匀速摩擦磨损过程的构思出发，提出构建一种非匀速摩擦磨损试验装置。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。