查询词典 probability distribution

The experimental results show that this new method can be used to estimate the MSS, and the spatial distribution as well as probability distribution of tissue scatterers.

实验结果表明，这种新方法不仅能估计出散射元平均间距，还能估计出散射元的空间分布与概率分布。

Through the Raman experiment data obtained above, the order parameters were determined and the orientation distribution graphs of BY and MO in BSFs were given. BY molecules were mainly oriented towards the plane of BSFs, but there was some probability towards other directions. The phase transition of the BSF from gel-to-liquid crystal resulted in a decrease of orientation distribution along the plane of the BSF and a increase diverging from the plane.

BY分子主要沿90°方向取向，但其它方向亦有一定的取向几率；MO分子的取向分布对BSF相变的反映是其有序程度的变化，BSF从凝胶态到液晶态的相变导致MO分子沿90°方向取向几率减小，而沿其它方向的取向几率增加，这实际对应MO分子热运动程度的增加。

In order to study damage evolvement of SFRC concrete materials,strength distribution was studied using WEIBULL probability distribution function.

为研究钢纤维混凝土材料的损伤演化过程，通过WEIBULL 概率分布估计了钢纤维混凝土材料的强度分布。

Based on the theoretical probability density distribution function of local packing fraction, the shell side flow distribution was presented.

在此基础上，结合随机单元模型和自由表面模型，发展了一种新的、相对简单的计算壳程流体分布的方法。

It inherits the advantage of PF, representing multiple uni-modal distribution instead of calculating probability distribution function explicitly.

该方法继承PF的优点，不需要直接求解概率分布函数，而是用随机采样得到的样本集合来表示机器人的位姿信度分布及其不确定性。

The experimental results show that this new method can be used to estimations of spatial distribution and the probability distribution of scatterers.

实验结果表明，这种方法不仅可以估计出散射元的平均间距，而且还能估计出散射元的空间分布及概率分布。

Genetic algorithm optimization process can be seen as algorithms in the process of constant cycle of viable domain random, using the results of previous sampling probability distribution on the target point estimates, and then based on an estimate of the projected distribution of a sample point.

遗传算法优化的过程，可以看作算法在循环过程中不断对可行域进行随机抽样，利用前面抽样的结果对目标点的概率分布进行估计，然后根据估计出的分布推算下一次的抽样点。

When the sojourn time of deteriorating state, inspection interval and maintenance time are the stochastic variables which follow the general distribution, the phase-type approach is proposed to preserve the analytical tractability of the transition probability matrix. To solve the problem that the PH distribution changes the state space of system, the value iteration algorithm for the semi-Markov decision process is improved to get the optimal inspection and maintenance policy.

针对模型中劣化阶段停留时间满足一般分布的情况，提出了一类基于位相型分布拟合的近似处理方法，将物理意义上的状态进行概率扩展，简化了维修决策的求解过程，并给出了对应的改进迭代算法，同时从理论上证明了该算法的收敛性。

This course includes descriptive statistics, probability distribution, sampling distribution, statistical estimation, hypothesis testing, analysis of variance, chi-square tests, simple linear regression, multiple regression, and nonparametric statistics.

本课程内容包括叙述统计、机率分配、抽样分配、统计估计、统计假设检定、变异数分析、卡方检定、简单线性廻归、复廻归、无母数统计。

The results above showed:(1) The cultivars of large-flowered chrysanthemum are widely distributed in Beijing area with plentiful floral types and floral colors;(2) The cultivars with the rare types and colors are urgent for protection;(3) Most of the quantitative characters obeys to the normal distribution,some important traits agreed with skewed distribution.The probability grading can assist quantitative character in establishing new grading standards;(4) Most of qualitative characters is asymmetrical in cultivars,which might be caused by unbalanced differentiation of characters or linkages coming from emphasis characters selection;(5) The floral characters are relatively stable and have comparably large influence on classification,the characters of stipule also have a certain degree of stability and can act as an reasonable supplement for cultivars classification,but the foliar characters have worse stability and can only be recognized as lower level criterion.(6) The genetic relationship among the Flat-petaled group,the Quilled-petal group and the Spoon-petaled group are closest,which followed by the Filiform-petal group because of long-term selection pressure for the specialization of the petal tip loved by most people.The Anemone-petal group has further genetic relationship with these four groups.(7) ISSR molecular marker detection indicates that the proportion of polymorphic loci of lardge-flowered chrysanthemum is higher,in which the Flat-petaled group has the highest genetic diversity level.

综合以上的研究结果表明：(1)北京地区现有大量大菊品种，且花型与花色较为丰富；(2)珍稀花型、花色品种亟需保护；(3)大部分数量性状是符合正态分布的，少数重点观赏性状迫于选择压力呈现偏态分布，概率分级法能够辅助大菊的数量性状建立新的分级标准；(4)大部分质量性状在品种群内的分布是不均匀的，可能是由菊花性状遗传分化的不均衡性或受到选育重点性状的连锁作用而造成的；(5)大菊花部性状相对稳定，对品种分类影响较大，其托叶部分也具有一定程度的稳定性，可以作为品种分类的合理补充，而叶部性状稳定性较差，在品种分类中应作为更次一级的分类依据；(6)平瓣类、管瓣类和匙瓣类的亲缘关系最近，畸瓣类品种花瓣先端特化受到人们的喜爱，长期的选择压力使其区别于3种基本瓣型，而这四种瓣型与桂瓣类在亲缘关系上较远；(7)ISSR分子标记检测表明：大菊品种多态性位点百分率较高，平瓣类品种的遗传分化最为丰富。

I was just taking her hand, to help her out of a car, and I knew it.

我只是握着她的手，扶她下车，但我知道这一切。

China and South Korea have excoriated Japan over its approval of new school books which they say whitewash the atrocities committed during Japanese occupation, and anti-Japanese protests have been held in Chinese cities. The lingering bitterness over Japan's past imperialism still threatens to mar relations between the big East Asian powers

中国和韩国强烈谴责日本通过新的中学历史教科书，他们认为这一教科书掩盖了日本在其占领期间所犯下的残酷暴行，反日抗议活动在中国数座城市发生，历史上日本帝国主义制造的痛楚无法被忘却，这有可能破坏东亚强国间的关系。