Selectivity Control in Acrylonitrile Electroreduction

The hierarchical clustering procedure outlined here permits us to extract the most significant information in the data set. All 14 clusters obtained at 5 successive hierarchical levels were homogenous and reflected the experimental conditions. In several cases, careful checking of the membership value of a given datum point in its assigned hard cluster 

FIGURE 6 Partition tree of archeological artifacts (obsidian). 

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