This asymmetric upward-diffusion mechanics form a true adatom upward diffusion flow and finally result in the quantum dots formation.
这一不对称的吸附原子向上扩散机制,使在生长过程中可以形成一个原子“真正”向上的扩散运动,最终形成了量子点。
With a time-variant diffusion flow equation, the algorithm is applied to Chaiping basin. The results show that the model and algorithm are simple and feasible, the parameters and in…
预报结果表明,算法和模型不仅简单易行,参数和初值稳定,而且能达到满意的预报精度,便于实用。
Besides the influence of temperature on specific heat of mixture, considered is also that of diffusion flow due to concentration discrepancies, thus making the theoretical model more exact.
除考虑温度对混合气比热的影响外,还考虑了由于浓度差异产生的扩散流动对混合气比热的影响,从而使理论模型进一步精确化。
There are the phreatic flow which shallow cycles and fissured diffusion flow deeply cycling, both are effected more or less by the reservoir water existed in the water-bearing block of limestone.
石灰岩含水体中存在着受库水影响较大的浅循环潜水流和深循环裂隙扩散流。
And we used a vector field that represents the flow of whatever the substance is whose diffusion we are studying.
我们用向量场表示物质的扩散,而其扩散就是我们要研究的内容。
However, under these circumstances cholinesterase would enter the saliva by simple diffusion and therefore activity should be correlated with salivary flow rate.
在这样的情况下乙酰胆碱酯酶将以简单扩散的方式进入唾液,因此它的活性必将和唾液流量速率相关。
The pseudo diffusion can be effectively reduced by using a grid system which is consistent with the flow direction.
采用与流动方向较一致的网格体系能有效地减小伪扩散。
The flow of chloride ions in the concrete of dry-wet cycling region is the combining of diffusion and advection.
在干湿交替区域混凝土中氯离子的输运属于在孔隙非饱和状态下离子浓度扩散和对流耦合的渗透。
Slump, slump flow, comprehensive strength and chlorine diffusion are tested.
检验了坍落度、流动性、综合强度和氯离子扩散作用。
It is shown that the pseudo diffusion greatly influences the calculated results of the flow field in a tangential firing furnace.
结果表明,伪扩散现象对四角炉膛流场的数值计算有很大的影响;
Flow pattern, time-varying behavior of rheological parameters, groutability, plastic strength and re-groutability of grouts are properties influencing the diffusion of grouts.
浆液流型、流变参数的时变性、可灌性、塑性强度和可重复注浆性是影响浆液扩散的基本性能。
With the study of the cement flow rule in the crack, we analyzed the influence to diffusion radius by the grouting pressure, cement rheological parameter and grouting time.
通过研究水泥浆液在裂隙中的流动规律,分析了灌浆压力、浆液的流变参数和灌浆时间对扩散半径的影响。
Firstly We investigated the flow field and temperature field of diffusion fuel.
首先研究了扩散燃烧时的流场和温度场。
It has been analysed that liquid flow pattern and liquid crosswise eddy diffusion influence on efficiency of bubble tray.
本文分析了液相流动形态及液相横向扩散对鼓泡型塔板板效率的影响。
The experimental study of a gas solid flow pattern and gas diffusion characteristics using polystyol particles and glass bead has been carried out in a pressurized spouted fluidized bed.
在一个加压喷动流化床装置上进行了冷态实验,研究加压条件下床中的气固流动状态和气体在各部分的扩散特性。
The pressure distribution of spherical and cylindrical flow is derived from the diffusion equation, and solutions under three conditions are given.
由扩散方程解出了球形流动与柱形流动的压力分布,确定了三种条件下的解。
Expressions of drift information flow and diffusion information flow, and concise formulas of information dissipation rate and information entropy production rate are given.
给出了漂移信息流和扩散信息流的表达式、信息减损率和信息熵产生率的简明公式。
The affection of mass flow and diffusion are different under different irrigation styles.
不同灌水方式下,质流作用与扩散作用的影响不同。
The experiment quantitatively verifies the existence of convection flows of gas induced by the gradient magnetic field, furthermore the convection flow promotes the combustion in diffusion flames.
实验定量地验证了梯度磁场可以诱导气体对流的发生,从而进一步推进扩散火焰燃烧反应。
In survey of this phenomenon, using spot date, physical and mathematics stimulant method, flowage and diffusion are studied and wellbore flow and air diffusion model of CO are established.
针对这一现象,运用现场数据以及物理模拟和数学模拟方法首次通过对CO气体流动、扩散等的综合研究,建立了CO井筒流动及大气扩散模型。
Results of this study on features of flow field and atmospheric diffusion parameters are described in the paper.
本文介绍了用平衡汽球探测法在山区工业基地研究大气边界层流场特征和大气扩散规律的结果。
Acid flow and reaction in a wormhole was studied by modeling the wormhole as a cylinder and numerically solving the mass balance equation that describes acid transport by convection and diffusion.
将酸蚀蚓孔简化为单圆管模型,酸液流动反应物质平衡方程反应传质和扩散作用。
A dynamic equation of plasma density is constructed about ionization, recombination, diffusion and plasma flow which is produced by inhomogeneous pressure.
考虑等离子体中存在电离和复合这两种互逆过程及扩散和压力不均匀引起的等离子体流动,建立密度动力学方程。
The molecule flow diffusion equation and the boundary conditions are given. The solution with linear approximation of entrance pressure is presented.
给出了分子流扩散方程的边界条件,推导出入口压力在线性近似下方程的解。
The main patterns of substance transport between shale and water based mud under low pressure are flow and diffusion.
常压下页岩与水基泥浆之间的物质迁移中主要以流动和扩散方式进行。
The T-type flaring pier is an energy dissipation technology by injection flow on weir crest, which incorporates lateral diffusion and longitudinal tension.
型宽尾墩是集横向扩散与纵向拉伸于一体的堰顶射流消能技术。
The mixing layer flow was numerically simulated by the discrete vortex method, in which the diffusion velocity method was adopted to model the viscosity.
对混合层流动进行了数值模拟。采用了离散涡方法。计算中采用扩散速度法处理粘性作用项。
In this paper, a two-dimensional flow equation and a thermodiffusion equation are used to simulate the diffusion feature of the cooling water drained into Puyang River by Xiaoshan Power Plant.
本文用二维水流方程和平面热扩散方程模拟电厂温排水在浦阳江中的扩散情况。
The diffusion theory of vortex is also used in the model to set up the diffusion equation of gas, and the barrier caused by the variation of flow patterns inside the flow field is resolved.
在模型中引入涡扩散理论建立了扩散方程,解决了气液两相数值模拟中流型变化带来的复杂问题。
Different meshes employed to simulate fluid flow in TFB (tangential fired boiler) were discussed and mesh methods to decrease crossflow diffusion were investigated.
为了探讨网格在计算中的作用,计算了切向燃烧锅炉模拟中采用直角网格布置导致的伪扩散效应在炉膛的分布。
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