Tvergaard and Hutchinson  introduced a trapeziform
cohesive law to investigate crack growth resistance during the fracture process of an elastic-plastic solid.
These FIs are oval, semi-round, or trapeziform
in shape, with sizes of 3-12 [micro]m.
In particular, trapeziform
and rounded ground planes, with notches near the feeding lines or with a zig-zag shaping of the upper edge, have proven to be particularly effective in increasing the operating band of said antennas.
Sternite VIII trapeziform
, sternite IX narrow and concaved on anterior margin (Figs.
Regarding shape, grass phytoliths are either unlobed (including orbicular, square, rectangular and trapeziform
shapes) or lobed (with sinuous margins).
The diagnosis of the latter includes the statement about the cell shape: "body rounded trapeziform
in lateral outline, deepest in or just behind the middle" (Kofoid & Skogsberg, 1928: 283, 37(2, 3); that does not correspond to the specimen illustrated by Halim (1967), which is suboval and almost symmetrical in relation to the longitudinal axis of the cell.
The four sides of glass substrate were cut off and showed reversal trapeziform
, with setae as illustrated (Fig.
Cadaveric and imaging studies also revealed that the trapeziform
or triangle articular contour of the fourth and fifth CMT joints would provide the lateral two joints a large range of motion (ROM).1,9
Tergite 1 of metasoma 3.5x as long as broad posteriorly, trapeziform
in cross-section (dorsolateral carina distinct), smooth dorsally and with petiole partly striate laterally, with small glymma.