Then this paper studied the effect of diffusion coefficient on concentration distribution and the conditions of substitution with numerical dispersion for physical diffusion.
通过将该半解析解与忽略扩散的数值解进行对比分析，讨论了数值弥散代替物理扩散的条件。
By making use of the Vlasov distribution theory and the three dimensional wave equation of waveguide modes, the dispersion relation of scattered waves in Compton region is deduced.
利用电子束的弗拉索夫分布函数理论和三维波导模的波动方程求得在康普顿区域中的散射波色散关系。
The expressions of field distribution and dispersion equations in two conditions are derived, and the results are numerically simulated.
推导两种情况下的场分布表达式及色散方程，并对结果进行数值模拟。
The maximum azimuthal anisotropy inferred from the azimuthal distribution method is decreased by about 30% because of dispersion of the azimuthal Angle of the reaction plane.
对于方位角方法，反应平面方位角的离散使方位角分布最大非对称性的计算值比真值下降了约30%。
One dimensional sedimentation dispersion model simulates the axial distribution of solid holdup well.
固含率轴向分布的一维沉降-扩散模型模拟值与实验值吻合较好。
The dispersion degree of distribution of DNA content in P. R.
原虫DNA含量分布的离散程度明显低于N原虫。
The model for the refractive index profile distribution of dispersion compensating fiber(DCF)is proposed in this paper.
提出了色散补偿光纤折射率剖面分布的通用模型。
Note that this value does not account for contextuality (relative position) and distribution (relative dispersion) of terms in the document.
注意这个值不能视为上下文相关的(相对于位置)和分配式的(相对于分散)词元在这个文档里。
The effects of sodium silicate consistence, surface modifying time, temperature and techniques on their diameter, size distribution and dispersion stability were studied.
研究了原料浓度、表面改性时间、温度、加料方式、改性剂用量等因素对纳米粒子粒径、粒径分布及分散稳定性的影响；
The particle size and distribution of dispersion were measured by dynamic light scattering, The particle morphology of dispersion was observed by TEM.
动态激光光散射测量水分散液粒径及其分布，透射电镜观察粒子形态。
In this paper, the distribution of shear stress along the anchoring section of pressure-dispersion anchor is analyzed by the elasticity theory.
运用弹性理论分析方法，求解出压力分散型锚索锚固段剪应力沿轴向分布情况，并与压力型锚索对比，得出压力分散型锚索应力分布特点。
A unique fiber dispersion method, which enabled uniform distribution of natural fibers, was used in this process.
一种在这项工艺中被采用的独特的纤维分散方法，可以进行天然纤维的均匀分布。
With this quality factor, the grating structure is optimized by selecting different coupling lengths and the distribution of coupling coefficient to improve its dispersion property.
通过比较得出一组最佳的品质因数调节参数，并用于对光栅耦合系数高斯分布形状和耦合长度进行优化，最终获得了最佳的色散特性。
Problems investigated in the thesis consist of two parts: one part is the numerical study of dispersion relations in relativistic plasma with Maxwell distribution;
本文所研究的问题主要包含两个部分：一是对相对论性麦克斯韦分布的等离子体色散关系的数值研究；
OBJECTIVE: To investigate the influence of dispersing medium and monomer dosage of dispersion polymerization on the particle size the distribution width of the polystyrene microspheres.
目的：观察分散聚合法中分散介质及单体用量对聚苯乙烯微球粒径与分布宽度的影响。
The influence of lens dispersion up to second order on the spatial and temporal intensity distribution of the femtosecond Gaussian beam was analyzed.
分析了单透镜色差和群速度色散对超短脉冲高斯光束聚焦的时间分布及脉冲波面的影响 ；
The additions of superabundant emulsifier agent to emulsions have no obvious effects on droplet size and distribution of dispersion phase.
过分地增加乳化剂含量对分散相液滴大小与分布也没有明显作用。
The solution of this fractional order advection-dispersion equation is fractional stable probability distribution density with four parameters.
此方程的柯西问题的格林函数解是一分数稳定分布密度函数。
The temperature distribution of power LEDs is measured, and the performance of thermal dispersion is discussed.
对各种正装和倒装焊功率型LED芯片的表面温度分布进行了直接测试，对其散热性能进行了分析。
The mathematic model of the holes distribution is established in this paper. Calculating the model by dispersion variable optimum method can obtain ideal holes distribution.
并且建立了对气孔布局参数进行优化设计的数学模型，应用离散变量优化方法进行优化计算，可得到较理想的气垫布孔方案。
Objective To examine the spatial distribution and dispersion of repolarization using space-time map of body surface potential mapping (BSPM) and their clinical value.
目的用体表心电标测时空图法探讨复极离散空间分布和临床价值。
The effects of group-velocity mismatch and dispersion, third-order nonlinear phase modulation on pulse shape, spectrum distribution and conversion efficiency of second-harmonic pulse were discussed.
详细讨论了群速度失配、群速度色散和三阶非线性相位调制效应对倍频光脉冲波形、光谱及转换效率的影响。
The effect of spontaneous dispersion may be characterized with principles of the spontaneous monolayer distribution.
自发单层分散原理认为，许多负载型催化剂的活性组分可在载体表面自发分散。
The effect of spontaneous dispersion may be characterized with principles of the spontaneous monolayer distribution.
自发单层分散原理认为，许多负载型催化剂的活性组分可在载体表面自发分散。
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