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针对微压内循环反应器0.8m×0.1m×1.2m试验模型装置的内部气液两相流进行计算流体动力学(CFD)二维模拟和试验研究,结果表明:模拟结果与试验结果相符,总体的流速误差<±20%,中间区域的流速误差<±10%,检验了CFD模型。通过流速分布规律研究,从流体动力学角度初步分析了该反应器分区垂向循环流动特征,垂向循环流促进反应器底部产生较高的水平流速,从而有效地减小死区,提高反应器的容积利用率。 相似文献
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壳聚糖及其衍生物在化工方面应用的研究 总被引:4,自引:0,他引:4
作为一种资源丰富、用途广泛的天然高分子化合物-壳聚糖及其衍生物在水处理、纺织印染、化妆品、造纸等轻工业各领域都有了越来越多的应用,对此做进一步的综述。 相似文献
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We carry out in situ single-molecule measurements of the specific interaction between apolipoprotein A-I (apoA-I) and ATP binding cassette transporter A1 (ABCA1) on THP-1 cells. Single-molecule force spectroscopy shows that similar to normal apoA-I, the dysfunctional apoA-I from diabetes patients interacts with ABCA1 via two different binding sites on the cells. The strength of dysfunctional apoA-I binding to a high-capacity binding site is 26.5±4.9 pN. The minor direct apoA-I/ABCA1 binding strength is 56.7±4.1 pN. These results facilitate a pathological understanding of the mechanisms that underlie the specific interaction of aDoA-I and ABCA1 at the single-molecule level. 相似文献
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