查询词典 distribution function

A novel approach and system for measurement of bidirectional reflectance distribution function based on optical fiber array in hemispheric space are proposed.

提出了一种基于半球空间光纤阵列的双向反射分布函数测量方法与系统。

Both a free volume approach for Helmholtz free energy and a theoretically-based fitted formula for radial distribution function of hard sphere solid were employed to describe the Helmholtz free energy of Lennard-Jones solid in the framework of first order thermodynamic perturbation theory.

结合描述硬球固体Helmholtz自由能的自由体积方法与描述硬球固体径向分布函数的拟合的分析表达式与一阶热力学摄动理论，用于描述Lennard—Jones固体的Helmholtz自由能。

Indices, including average line loading, average line flow limit per MW served, line investment ratio are proposed to quantify the stress level of the system, while the probability distribution function of fractional load shed and total failure components, cascading failure frequency, and risk are used for the risk analysis of cascading blakcouts.

论文提出了网络利用率、单位平均投资和线路投资比等指标，对系统的临界水平进行量化；并采用连锁故障灾难度的概率分布函数、连锁停电事故频度和风险等指标分析电力系统的连锁故障风险。

In this chapter the method of random load sequence regeneration which median and amplitude are expressed with Gauss distribution function has been researched and introduced in detail.

本章较详细地研究和介绍了中值和幅值以正态分布密度函数表示的载荷序列再生方法。

"S" curve of growth ; Gauss distribution function ; training curve ; professional teaching model design ; correlation analysis

"S"型生长曲线； Gauss分布函数；人才培养曲线；专业教学模型设计；相关分析

The characteristics of growth curve were analyzed,a Gauss distribution function training model was established by fitting education law.With the actual higher vocational education,the design methods and steps of professional teaching plans were given,and the model was optimized by using correlation analysis.

分析了生长曲线的特征，依据教育规律建立了Gauss分布函数的人才培养模型，结合高等职业教育实际给出专业教学计划的设计方法和步骤，运用相关分析对模型进行优化。

For a high laser intensity and small spot size, an electron may escape from the laser and can retain energy gain.We obtain analytical expresses of electron instantaneous momentum. Taking the plane wave of Gaussian laser for an example, we derive electron distribution function over instantaneous values of electron momentum and energy.

本文考虑电子初始温度不高(约100eV)以及脉冲长度很短(约4-6个激光波长)时，也能得到两群高能电子群；在脉冲长度极短(仅有2-3个激光波长)和电子初始温度不太高的情况下，就有明显的三群高能电子群出现，且如果激光功率密度大于5×10~(18)wcm~(-2)时，高能电子的温度也达到MeV。

In chapterⅣ, three problems in the velocity space are simulated numerically under the basic presumption that the distribution function is homogeneous in configuration space. The results of numerical simulations demonstrate that the conservation laws of momentum and energy are obeyed accurately.

第四章在"空间均匀分布"的前提下对三个速度空间中的问题作了数值模拟，数值模拟结果表明这种方法能够精确地保证动量及能量守恒。

This method can reduce the required time to generate variates, and when the inverse distribution function is sufficiently smooth, the interpolation formula has a higher convergence order.

非均匀随机变量的产生是运行仿真模型的需要，而产生非均匀随机变量却没有一个通用的方法，这给实现仿真的自动化和一些实际应用带来了困难。

However, It is difficult to specify the probabilistic model with a joint distribution function because of the large dimensions of the problem.

可是由于问题本身的维数，如何用联合分布来表示概率模型是件棘手的事情。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。