查询词典 marginal distribution density function

The new upper bound on complementary cumulative distribution function of the PAPR of a band-limited OFDM signal is derived based on the level-crossing rate theory, and the Monte Carlo simulation of the PAPR distribution of a 16QAM-0FDM system with different subcarriers is carried out to test the tightness of the new upper bound.

基于越幅率理论推导了带限OFDM信号PAPR的互补累积分布函数的一种新的上边界，并针对一个16QAu-OFDM系统，对不同子载波数的PAPR分布进行了蒙特卡罗仿真，以验证新的上边界的紧密性。

Concerning the disadvantage of the original PSO that is easily trapped in the local optimization and the convergence speed is slow in the evolution later, a particle swarm collaborative optimization algorithm based on velocity angle was proposed. The strategy of inertia weight adjustment was adopted based on cumulative distribution function of Gaussian distribution.

针对PSO存在易陷入局部极值、进化后期收敛速度缓慢的缺点，提出一种基于速度夹角的粒子群协同优化算法，并且引入了一种基于高斯分布的累积分布函数的惯性权重调整策略。

Firstly, variables which were acquired for the above two kinds of classification system were obtained from field and laboratory investigation of the core samples as well as test of supersonic waves in drilling holes. Secondly, distribution functions and parameters of all variables are determined using statistic method. Thirdly, 20000 RMR values or BQ values and cumulative distribution function of these RMR or BQ values have been obtained utilizing Monte—Carlo method and the results are plotted. Finally, risk analysis can be made from above results.

风险评价方法步骤如下：（1）首先通过岩芯样品的现场观测和实验室试验及钻孔岩体超声波测试获得两种分类所需的变量；（2）通过统计分析和判断得出各变量的分布函数及参数；（3）运用Monte—Carlo模拟方法获得2万个RMR值或BQ值及相应的累积分布函数，并将结果绘成岩体质量描述图；（4）运用以上结果作出岩体质量风险分析。

The article analyze the status in quo of the power distribution geographical information system, GIS and the subject of the entity in the meantime, describing the demand analysis, general layout, the module curtate, module of the power distribution geographical information system, GIS main function.

文章同时分析了配电地理信息系统的现状及存在的问题，描述了配电地理信息系统的需求分析、总体设计、模块划分、模块主要功能。

The distribution parameter and the feature size in the distribution function about the droplet size were obtained by simulation.

分别建立了提升段和喷射段的传质模型，并对罩内传质进行了计算。

Almost all studies about EB estimation are for the parameter of distribution but few for the parameter function of distribution.

大多数对EB估计的研究都是针对分布参数的，然而对分布参数函数的EB估计的讨论却较少。

The ideal vehicle convoy is built after the uniformly distributed load is used as the equipollent load. With the maximum function of influence line area under the vehicle convoy, the probability of specific vehicle convoy passing influence line alone and the total weight distribution of specific vehicle convoy, the maximum probability distribution of traffic load effect and under return perild are obtained. Finally, this load model is applied to the example.

模型中把均布荷载作为车辆荷载的等代荷载建立了理想车队，在求出车队影响线面积最大值函数、特定车队单独通过影响线的概率和特定车队总重分布的基础上，得出了车辆荷载效应最大值概率分布和给定评估期的车辆荷载效应最大值概率分布，最后将这一荷载模型应用到实例中。

We get appropriate threshold with mean excess function plot, get severity distribution of losses over threshold with GPD and frequency distribution with hypothesis test.

首先根据均超函数图估计出恰当的阈值，利用假设检验估计超阈值的发生强度，用广义帕累托分布估计了超限参数。

Results: GLMMs allow the index may be one of the exponential family (Contimuum distributions including Nomal ,beta distribution ,chisquared distribution etc;Disperse distributions including Binomal ,Poisson and inverse Binomal etc), the vecor of expected means of the index is linked to the model parameters by a link function and model the linear equation, simple the calculator procedure.

结果： 广义线性混合效应模型允许临床疗效评价指标是指数家族中任意分布（如：连续分布包括正态分布、beta分布、卡方分布等；离散分布包括二项分布、泊松分布、负二项分布等），可以通过连接函数将疗效指标的均数向量与模型参数建立线性关系，简化运算过程。

The distribution of initial estimation discrepancy was further modeled as a mathematical gamma function so that distribution features could be characterized.

初始值估计法的各种模拟情况包括有：杂讯的资料、杂讯资料加上奇异值分解法以及无杂讯资料等，模拟的结果将三者加以比较。

"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。