| 1. | Al2o3 ceramic wafer substrate had average pore size about 10 m and upper porosity over 40 % , which was added pore - forming agent of graphite and shaped by pressing
采用压制成型制备的添加石墨成孔剂的圆片状al _ 2o _ 3陶瓷支撑体具有较小的平均孔径( 10 m左右)和较高的孔隙率( 40以上) 。 |
| 2. | Effects of the content of fiber , vesicant , pore ratio and pore diameter were investigated , the results indicates the variables have great effects on the sound absorbing performance of the samples
实验发现，孔隙率、平均孔径大小、玻璃纤维含量、发气剂含量对材料吸声性能有显著影响。 |
| 3. | Experiments indicate that the micropore membrane made by the optimal process and recipe of solution has porosity > 75 % , average pore size < 1m , the similar structure to ideal model
实验结果表明，利用优化工艺所制得pvdf微孔膜孔隙率在75以上，平均孔径在1 m以下，透湿量较高，形态结构接近于理想模型的微孔膜。 |
| 4. | Under the conditions of operation pressure about 0 . 5mpa and feed temperature 25c , the rejection performance of nacl feed solution ( 500ppm ) , is about 36 % , while the flux is about 40 . 3ml cm - 2 h - 1
在本研究中，利用溶胶一凝胶法制备出平均孔径约为15nm 、水通量为7oml ? 。 m一2 ? h一1 、性能较好的5102 / a12o3无机复合超滤膜。 |
| 5. | The calculation results show that the radius of the gas channels in the reaction layer and the porosity and average pore radius of the gas - diffusion layer seem to be less important for the performance of the electrode
模型结果表明对于电极性能而言，气体扩散层的孔隙率与平均孔径以及反应层气体通道的半径，相对其他参数来说显得不太重要。 |
| 6. | The calculation results show that the radius of the gas channels in the reaction layer and the porosity and average pore radius of the gas - diffusion layer seem to be less important for the performance of the electrode
模型结果表明对于电极性能而言，气体扩散层的孔隙率、平均孔径以及催化层气体通道的半径，相对其他参数来说显得不太重要。 |
| 7. | In this paper , micro - porous metals with 2 - 23 u m - pore diameter and 19 . 3 - 62 . 4 % porosity were produced by the powder metallurgy . through the experiments and sem analysis , the effect of processing parameters on porous structure was studied
实验应用粉末冶金的压坯加熟发泡方法，制得了微孔泡沫金属材料，其平均孔径在2 - 23um之间，平均孔隙率在19 . 3 - 62 . 4之间。 |
| 8. | As the pre - evaporation time increases , the holes on the membrane surface becomes smaller and less , dense layer is becoming more evident with large and deep holes in supporting layer ; and porosity increases as well - as average hole diameter decreases
随着预蒸发时间的延长，膜表面的孔变小变少，膜的致密层越来越明显，支撑层有大而深的孔结构出现。随着预蒸发时间的延长，膜的孔隙率上升，平均孔径下降。 |
| 9. | The spherical paam beads with average size diameter 111 . 8um and average pore diameter 119 . 8nm were obtained and can be used as ldl adsorbent ' s matrices . compared with the import product , the paam beads synthesized by our lab are costeffective
按此配方合成的聚丙烯酰胺微珠呈规则的球形，平均粒径为111 . 8 m ，平均孔径为119 . 8nm ，这些均符合ldl吸附剂载体的要求(粒径为100 200 m 、平均孔径为100 200nm ) 。 |
| 10. | The second chapter shows the synthesis and electrochemical capacitance performance of the mesoporous co ( oh ) 2 in 1 m koh electrolyte . mesoporous co ( oh ) 2 with the high specific area of 283 m2 / g and average pore size of 11 nm by means of the sds as soft template and urea as precipitator was synthesized
第二章为多孔cooh ) 2的制备及其超电容行为:利用十二烷基硫酸钠为软模板,尿素为沉淀剂合成了具有高比表面积( 283m2 / g ) 、平均孔径为11nm的中孔co ( oh ) 2体相材料。 |
