Comparison of features between the experimental and the Geptop groups.

a“ = ” denotes significance of the Mann-Whitney test was within 5%; “>>” denotes that the experimental group was greater than the Geptop group using the Mann-Whitney test at a 5% level; “<<” denotes converse case.
b“ = ” denotes that the difference between two groups was within 5%; “>>” denotes that the difference at a significance level of 5% for the experimental group was greater than that for the Geptop group; “<<” denotes converse case.