Why were stone projectile point blade margins serrated in some circumstances and not others?
For testing LRI, Lw (expand the leaf blade and determine the greatest width) and Ln (the natural distance of leaf blade margins at the same position) were measured.
An effort is made to distinguish autonomous cell behaviours from responses to stresses that arise from hinge reshaping and pinning of the blade margins.
To determine the leaf rolling index (LRI), two measurements were taken, Lw (Expand the leaf blade and determine the greatest width of the leaf blade) and Ln (Measure the natural distance of the leaf blade margins at the same site).
The Fern Finder provides glossary illustrations that show the parts of a fern, the different frond shapes, frond divisions, blade margins, plant growth forms, as well as 'other features' (Hallowell and Hallowell 2001).
The following parameters were individually varied: depth of cut, cutting speed, feed rate, helix angle, number of blades, margin size and rake face finishing of reamers.
While Kuroda was able to escape without any additional damage, it was clear that he was dancing along the edge of a blade, with little margin for error.
However, we do not understand the origin of counterforces that restrain movement of the wing blade at the margin.
Additional differences in the leaf and petiole transverse sections include the epidermal cell shape of the adaxial leaf blade, the leaf margins, and the petiole transverse sectional outline.
According to ASTA, an average travel agency which is more likely to be a mom-and-pop operation than a mega-agency like American Express–operates on a blade-thin profit margin of 1% to 1.5% and spends between $25 and $30 to process each ticket.
