电子速度分布函数采用平顶形式。
The flat-topped type is used for the electron velocity distributions.
本文从特征函数导出了布朗粒子的速度分布函数，并对结果进行了讨论。
The velocity distribution function of Brownian particles is derived from the characteristic function, and the meaning of the result is discussed.
并给出了相应地速度分布函数、压力分布函数和满足附着边界压力条件的动态边界方程。
Meanwhile relevant speed distributed function, pressure distributed function and dynamic boundary equation met the adhesive pressure boundary condition are given in this paper.
引入一个新的能量分布函数，利用该能量分布函数与粒子速度分布函数耦合来求解一个热流场。
A new distribution function of energy is introduced and coupled with a velocity distribution function of particle and applied to study a hot fluid field.
亚稳态原子消激发，使蒸气宏观速度增加，温度增加，所以使速度分布函数峰值右移，半宽度增加。
As metastable atoms deexcite, the vapor velocity and temperature increase, the peak value of the velocity distribution function shifts rightward, and the half width increases.
利用夫兰克-赫兹实验仪测量了电子气体的速度分布函数，并分析了电子与氩原子碰撞的动力学过程。
The velocity distribution function of the electron gas is measured by using Franck-Hertz experiment instrument, and the dynamical process of collision between electron and argon atom is analyzed.
应用最大熵原理和动量守恒定律，从理论上建立了喷雾液滴尺寸和速度联合分布函数。
A droplet size and velocity distribution function was theoretically derived based on the maximum entropy principle and the momentum conservation law.
该方法能够描绘出反应器内各点的水流速度以及涡流函数分布，且模拟结果与试验测定结果吻合得较好。
This method can describe the water flow velocity and vortex function distribution on all points of the reactor, with the simulation result in good coincidence with field test data.
首先利用非对称的LINEX损失函数对双指数分布族刻度参数进行了经验贝叶斯估计，并讨论了该估计的性质，给出了收敛速度。
First, we obtain the empirical Bayesian estimator of the scale parameter for the double exponential distribution based on LINEX loss function and the convergence rate of the estimate.
在考虑瞬态过程中动量扩散速度基础上，用拉普拉斯变换法对无限长平板突然起动瞬态动量定解方程进行了求解，并按涡量定义求出涡量分布函数。
Based on the limited momentum propagation velocity, this paper presents the solution of the transient momentum equation by Laplace transform. The distribution functions of velocity and eddy are given.
在非稳流下，采用函数拟合法，得出流体切向速度随半径变化的表达式及流体所受切向剪切力和分布曲线。
Secondly, in conditions of non-steady flow, azinuthal velocity and shear stress distribution were deduced according to function approximation method.
从颗粒运动的PDF(概率密度分布函数)输运方程出发建立颗粒相的质量、动量和脉动速度二阶矩方程。
Equations of mass, momentum and second moments for particulate phase are derived from a particle PDF (probability distribution function) equation in dilute turbulent sediment-laden flows.
在此基础上利用流函数建立了变形区速度场，并利用计算机对变形能进行求极小值，得到了变形区的速度分布及拉拔力。
Based on the assumption, the computer was used to calculate the minimum deformation energy, and the speed distribution in the deformed area and the drawing force were gotten.
非定常流中流速分布及湍流中欧拉空间关联函数都需要同时测量各空间点的速度作为时间的函数。
In unsteady flows it may be relevant to measure the spatial velocity distribution as a function of time.
绘制了速度矢量分布图，和流函数，涡量，两个分速度及压强的等值线分布图。
The diagram of distribution of speed arrow, constant lines of flow-stream function, vortex, two speed parts and pressure were studied.
在扫描速度恒定的条件下，得出各路径及声源对扫描线的误差分布函数图形。
The error curves of different paths and sources vs scanning line number mare obtained.
可是，这种信号发生器的上限频率的提高受存储器的读取时间和数模转换器的转换速度的限制。为了提高数字法函数信号发生器的上限频率，我们提出了用分布存储式数字法生成函数信号。
However, extending the upper frequency of such function signal generator is limited by the read-out time of the memory and the conversion rate of the digital-to-analog converter.
通过模拟法和数字法处理数据，得到了迴流区的平均速度和湍流度分布，还从数字数据处理器得到了速度概率分布和概率密度函数。
Two data processing methods, one analogue method and the other digital, were employed in order to obtain the profiles of mean velocity and turbulent intensity.
给出了停留时间分布密度函数、无因次半速度半径轴向增长、径向射流最大速度轴向衰减和径向速度分布计算公式。
The equations of the density function of residence time distribution, the axial growth of the velocity half - radius, the axial decay of radial maximum jet ve...
第四章从分子束的速率分布函数出发推导了与速度有关的能量、动量、频率和波长等物理量的分布函数。
In chapter 4, from molecule beam's speed distribution function, this paper deduces energy, momentum, frequency and wavelength distribution function.
在典型的测试函数集上的数值实验结果表明，根据这些策略改进的算法得到的非劣解集具有较好的分布性，同时收敛速度更快。
The simulations prove that the non-dominated Pareto optimal solutions have better distribution and faster convergence at the same time in typical functions.
在典型的测试函数集上的数值实验结果表明，根据这些策略改进的算法得到的非劣解集具有较好的分布性，同时收敛速度更快。
The simulations prove that the non-dominated Pareto optimal solutions have better distribution and faster convergence at the same time in typical functions.
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