查询词典 marginal distribution density function

We studied its distribution pattem by using the following measures f the test for fitting to the poisson , negative binomial and neyman a distribution . at the same time , we use negative binomial parametef , dispersal index , patchiness index , cassie s index and clumping index , estimated the aggregation intensity . the results showed that the distribution pattern is typically aggregated , and the intensity of aggregation vari

经统计分析，青岛百合复合种群、各局部种群内个体的分布格局离散分布拟合的结果符合负二项分布；各聚集强度参数中，丛生指标）和 cassie 指标均大于o ，负h项参数限）均较小，扩散系数k卜扩散型指数）和聚块性指标均大于1 ，以上这些表明各个局部种群的分布格局都为聚集分布。

The model uses the Pearson distribution system to simulate the backscattering distribution of ocean surface on SAR imagery. In the Pearson distribution system, four distributions including the Pearson distributions of typeⅠ,Ⅲ,Ⅳ and Ⅵ are employed.

模型使用Pearson分布系统模拟SAR图像海洋背景散射分布， Pearson分布系统由4种参数分布组成，包括Pearson I分布、Ⅲ分布、Ⅳ分布和Ⅵ分布。

In 1988, Song Dedun and Ding Jing further verified that the distributions whose inverse forms must be explicitly defined could by no means be a prerequisite for using the PWM method, and they applied PWM method successfully to the estimation of parameters in Pearson Type-Ill distribution (P-III distribution) although this sort of distribution nev...

由我国宋德敦、丁晶(1988年)将美国Greenwood等人(1979年)提出的概率权重矩法，应用于P-Ⅲ分布，取得较好效果。本文将PWM法应用于指数Γ分布的参数估计。统计试验结果和实例分析表明，PWM法用于指数Γ分布的参数估计时，具有较好的统计特性。

To obtain more detailed and accurate temperature distribution inside large size hydrostatic bearing, a simulation method was present, combined with a given example of prevalent applied large size hydrostatic bearing in heavy equipment. It consisted of three dimensional numerical model and boundary condition of hydrostatic sliding way and hydrostatic sliding way inside 3-D flow. The model equations were solved by the Finite Volume Method and by selecting segregated solver of FLUENT according to CFD principle. The more accurate results of temperature rise distribution on periodic surface are obtained. The effect of partial important parameters on temperature distribution was analyzed.

为了能够数值模拟出较详细和较准确的大尺寸静压轴承内部流体的温升分布，以重型装备中所广泛应用的大尺寸静压轴承为研究对象，建立了模拟静压轴承本体及轴承内部三维流动的数学模型及边界条件；利用计算流体动力学原理，采用有限体积法并选取FLUENT中的分离式求解器进行求解，得出了轴承周期端面较准确的不对称温度分布，并分析了部分重要参数对温度分布的影响。

Due to the Randomicity, diversity and complexity of distribution of meteorite strike event, the real distribution of plagioclase is pretty complicated, but it is based on the theoretical distribution.

由于地球表面陨击事件分布的随机性、多样性以及复合性，有关斜岩实际分布的情况比较复杂，但都以上述理论分布特征为基础。

The stress distribution of section in wide and thin box girder subjected to simultaneous bending and axial forces doesn't conform to the assumption of the plane section, and the transverse stress distribution is uneven; with the increasing of bridges' span and the lowering of security repertory, to consider the uneven of stress distribution in calculation of design and construction control, and to analyses the shear lag effect in the process of bridges' construction and using are bound to have important engineering value and theorical significances.

在压弯荷载共同作用下，宽而薄箱梁的截面应力分布并不符合平截面假定，沿横向分布不均匀；随桥梁跨度的加大和安全储备的降低，在设计计算和施工控制计算中考虑这种不均匀性，准确分析其在施工和使用阶段的剪力滞问题具有重要的工程价值和理论意义。

Then, forecasting return is accomplished. Because of being free of probability distribution suppositions for the sale quantity and the return quantity, such as the binomial distribution and the polynomial distribution, the model is more flexible compared to previous forecasting models.

该预测方法的突出特点是，无需像以往预测模型那样假定回收量和前期销售量符合特定的概率分布(例如多项式概率分布或二项式分布)，因此模型具有较强的通用性。

It gives performance comparison of instantaneous frequency estimation algorithms based on the peak of Wigner-Ville distribution and fourth-order polynomial Wiger-Ville distribution, analyzes the influence of window width to the estimation performance of instantaneous frequency estimation algorithms based on time-frequency distribution.

在不同飞行状态下，给出了基于Wigner-Ville分布、四阶多项式Wigner-Ville分布峰值的瞬时频率估计算法的性能对比，并分析了窗长对瞬时频率估计性能的影响。

ABSTRACT: In order to establish the reliability model of long pipeline and rope, which is capable of reflecting the correlativity between virtual components, the present paper illuminates the segment partition principle of long pipeline and rope continuity system, relationship between sizes of virtual segments and features of flaw distribution, distribution of segment intensity, the failure correlativity among components, relationships of segment sizes, relationships between distribution of system intensity and that of segment intensity and so on.

为了建立能反映虚拟的"元件"间失效相关性的长管道或缆绳的可靠性模型，论述了管道、缆绳类连续系统的单元化原则，虚拟单元的尺寸与缺陷分布特征的关系，单元强度分布及单元间的失效相关性与单元尺度的关系，系统强度分布与单元强度分布的关系等。

Results to obtain the location of the content and distribution of Staphylococcus law, when the dynamic equilibrium of its distribution after the crop, jejunum within the district with the largest, at least Proventriculus distribution, which the digestive tract for the turkey provided microecological dynamics scientific data.

结果从而获得了这些部位葡萄球菌的含量及分布规律，当其分布达动态平衡后，以嗉囊、空肠内分布最多，腺胃分布最少，这为火鸡消化道微生态动力学提供了科学数据。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。