有一些关于分子的扩散速率的数据。
扩散速率对温度的敏感性最小。
与辐射加热相比,接触面处原子扩散速率加快。
And comparing with radiation heating, atom diffusion velocity at interface quickened.
在水分再分布过程中,垂直方向的扩散速率始终大于水平方向。
In the course of the second water distribution, the vertical diffusing speed is faster than level diffusing speed.
结果表明,催化剂的碱性,氧扩散速率等对催化剂的活性均有影响。
It was demonstrated that both the lattice oxygen mobility and Surface basicity affected the performance of the catalyst.
此后,总速率由颗粒外表层内的扩散速率决定,符合一级动力学微分方程。
Hereafter, the general rate is determined by the diffusing rate in the exterior surface layer of the particle, which accord with lst-grade dynamic differential equation.
因此,如何确定单体的扩散速率和聚合速率系数在优化器件性能方面至关重要。
Hence, how to determine the diffusion and reaction coefficients is of significance on the improvement of devices performance.
可以在横向和垂直方向中产生不同的硼扩散速率,并且可以实现与砷可比的扩散速率。
Different boron diffusion rates can be produced in the lateral and vertical directions and diffusion rates comparable to arsenic can be achieved.
结果表明,吸收信号形状由被测元素的性质、样品气化速率和原子蒸气扩散速率决定。
It was found that the shape of absorption signal was controlled by the property of the analyte, the sample vaporization rate and the gas diffusion rate.
不同填充液与溶剂之间的相互扩散速率不同,得到了具有不同结构的聚醚砜中空纤维膜。
PES hollow fiber membrane was obtained with different structure owing to the different dispersing rate between different internal quench medium and solution.
区分氧化钙脱硫反应中的化学反应动力学速率与二氧化硫、氧气分子的扩散速率是一个难题。
It is difficult to distinguish the kinetic reaction rate from the diffusion rate of SO2 and O2 molecules during the Dry FGD reactions.
结果:在亲水的高分子凝胶基质中,离子形式的双氯芬酸钠扩散速率大于分子形成的扩散速率。
RESULTS:The diffusive rate of diclofenac sodium from the two kinds of hydrophilic polymer gel was higher than that of diclofenac acid.
实验发现,聚电解质对丙烯酸酯乳液聚合行为的影响与其胶束聚集度、扩散速率有着重要的联系。
It was also found that polyelectrolyte's influence on the behavior of emulsion polymerization had great relations with diffusion rate and micellar aggregation number.
方法:采用正交试验,对双氯芬酸二乙胺凝胶进行体外透皮试验,以透皮扩散速率常数为考察指标。
Method: Orthogonal design was used in transdermal test with transdermal diffusion rate constant as selection standard.
在生物化学中,透析是指根据分子扩散速率的不同,利用半透膜(如透析管)分离溶液中分子的过程。
In biochemistry, dialysis is the process of separating molecules in solution by the difference in their rates of diffusion through a semipemeable, such as dialysis tubing.
实验结果表明,从开始到吸附量达一定数额这段区域内,总速率由界膜内的扩散速率决定,且为一常数。
The experimental results show that, in the range from the beginning to a certain amount of adsorption, a general rate is decided by the diffusing rate in the scope film and it displays a constant.
因此在本单元的学习过程中,学生通过实验的方式对其中的两个知识点“杂质对纯物质熔沸点的影响”和“影响扩散速率的因素”进行了学习。
In this process the students learned "How the impurity affects the melting point and boiling point" and "the factors affecting the rate of diffusion" by doing experiments themselves.
这样一来,细胞内部发生的使得核酶加速核酸复制速率的任何变化,都会在进化群体中快速扩散。
Thus, any random changes in the interior, fledgling ribozymes that could speed up nucleic acid replication rates will spread rapidly through an evolving population.
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。
However, under these circumstances cholinesterase would enter the saliva by simple diffusion and therefore activity should be correlated with salivary flow rate.
本文研究一类具有非线性吸收和非线性边界流的非线性扩散方程,建立了解的爆破速率估计。
In this paper, the blow-up rate is determined for a nonlinear diffusion equation with nonlinear absorption and nonlinear boundary flux.
与在去离子水中相比,材料在盐水中饱和吸水率、初始时吸水速率和水扩散系数较小。
In salt water the composites had less water absorption, absorption rate and diffusion coefficient than that in di water.
因此,强化固液间的分子扩散和界面更新是提高树脂催化蔗糖溶液水解速率的途径。
So, enhance the molecule diffusion and the interphaserenovation is the way to increase the rate of hydrolysis.
食品聚合物科学认为:在玻璃态下,造成食品品质变化的一切受扩散控制的反应,其速率均十分缓慢,甚至不会发生。
The food polymer science demonstrates that under the glass state, the change of food quality is controlled by the reaction of diffusion, which is quite slow in speed or even could not happen.
活性炭吸附蔗糖是一种化学吸附过程,蔗糖是以单分子铺展的形式被吸附于活性炭表面,其吸附速率由内扩散所控制。
Adsorption of sucrose on activated carbon is a chemical adsorption process and belongs to mono-molecular surface adsorption. The adsorption rate is controlled by internal diffusion.
金的填隙原子向硅扩散的速率比III族和v族杂质快几个数量级。
The interstitial atoms of gold diffuse into silicon at a rate several orders of magnitude faster than the group III and V impurities.
并对反应速率常数和有效扩散系数、表观反应活化能和有效扩散活化能及反应过程中各步骤阻力进行了分析。
Reaction rate constant, effective diffusivity, apparent activation energy, effective diffusion activation energy and resistance in various steps of the reaction process were analyzed in this paper.
在四种作物的抽穗期同时测定其气孔扩散阻力、蒸腾速率与叶水势日变化。
The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.
在四种作物的抽穗期同时测定其气孔扩散阻力、蒸腾速率与叶水势日变化。
The resistance of stomatic diffusion, evapotranspiration rate and daily progress of water potential in leaves of the four kinds of crops were determined at the same time in their heading stages.
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