Based on experiments, the diffusion mechanism and influential factor of selective uranium separation and acids recovery with ion exchange diffusion dialysis membranes are introduced. 通过初步试验,探讨了用离子交换扩散渗析膜有选择性地回收酸分离铀的机理及影响因素。
A plastic membrane serves as selective diffusion barrier. 一层塑料薄膜起着选择性渗透屏障的作用。
Secondly, the study on selective diffusion for crystalline silicon solar cell is introduced, including the explain away structure of selective emitter solar cell and the technological design of selective diffusion; 其次,阐述了晶体硅太阳电池选择性扩散的研究(其中包括选择性发射极太阳电池的结构说明和选择性扩散的工艺设计);
The experiment proved that this etching method is compatible with the production technologies now used in industry. If we modify some technology such as selective diffusion process and rapid thermal process ( RTP), the efficiency may be improved to 9~ 10%. 本实验说明这种绒面制作技术与常规电池生产工艺是相兼容的,如果能改进某些生产工艺比如采用选择性扩散、快速热处理等,电池效率有望达到9~10%。
To realize selective diffusion in local region, the diameter of the laser beam spot on the surface of the semiconductor substrate is only about dozens of microns. 为实现局部区域的选择扩散,激光光斑半径仅数十微米。
The contribution of the two parts respectively into the pervaporationwas evaluated with the selective sorption factor and the selective diffusion factor. 本文定义了选择溶解因子和选择扩散因子,用以评价上述两部分各自对渗透气化过程的贡献。
It is described that the innovatory technology of selective diffusion and study on surface passivation in theory for crystalline silicon solar cell. 本文的主要内容是介绍晶体硅太阳电池选择性扩散新工艺和表面钝化的理论研究。
The model of diffusion/ reaction kinetics for selective alkylation on medium pore molecular sieve has been used to explain our experimental results. The p-xylene selectivity was mainly controlled by the diffusion of alkylation products and isomerization of xylene on the surface strong acid sites. 结果表明对-二甲苯选择性不仅与烷基化反应的扩散/反应动力学有关,还与产物在分子筛表面的二次异构化反应性能有关。
The results showed that the aromatics selective permeability of composite membrane was affected by both solubility selectivity and diffusion selectivity. 结果表明,复合膜的芳烃选择性是溶解选择性和扩散选择性共同作用的结果。
Among these models, degenerate diffusion model and selective degenerate diffusion model can keep the image edges very well during inpainting. 其中退化扩散模型和选择退化扩散模型在修复的同时能够很好的保持图像的边缘信息。
Then, inspired by TV inpainting model, the paper proposed some improved image inpainting models, namely Perona-Malik diffusion model, selective smoothing model, degenerate diffusion model and selective degenerate diffusion model and put these denoising models into inpainting field. 然后,在TV修复模型的启发下,本文提出了几个改进的图像修复模型,即把Perona-Malik扩散模型,选择平滑模型,退化扩散模型,选择退化扩散模型这些经典的滤波模型用于图像修复领域。
Meanwhile, the selective anisotropic diffusion equation, robust anisotropic diffusion and fourth-order partial differential equations are introduced. 同时,介绍了选择性各向异性扩散方程、鲁棒性各向异性扩散方程以及四阶偏微分方程。