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白玉浴血

木虫 (正式写手)

[求助] 求大神指点一二

Two surfactant molecules are defined to be in the same cluster if the distance between their centers of mass, Rcom is smaller than a certain cutoff distance which we call Ragg. On the basis of visual inspection of the CLUS2 trajectory (which shows occasions where the two surfactant molecules disaggregate) we find Ragg to be within the range 1.0 nm < Ragg <1.4 nm. A value of Ragg 1.2 nm was used for the analysis, but the results do not depend significantly on the precise choice of Ragg within the indicated range. For the stability of a cluster the following definition was used.
我就是没看懂Ragg到底是怎么定义的呢?还有cutoff distance是什么,应该怎样理解
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zap65535

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两院大学士后

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白玉浴血: 金币+10, 翻译EPI+1, ★★★很有帮助, 谢谢,我稍微明白了 2015-01-28 09:57:59
Cutoff: a point or level that is a designated limit of something
两个表活剂分子间距离(Rcom)小于一定 阈值(Ragg)就定义为在同一分子束中。
作者大概推测出这个阈值在1.0到1.4nm,暂定为1.2,然后通过显微镜观察分子间距,来观察分子是否发生聚集。
因为the results do not depend significantly on the precise choice,所以这个Ragg不需要很准确,在大致范围内即可。
2楼2015-01-28 05:43:59
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