Filopodia have an elongated and well defined shape with diameters varying from 100 to 500 nm and an average length of approximately 15 µm[26].
For simplicity, the vegetation was assumed to be uniformly distributed in a tree crown represented by a well defined geometric shape (cone or cylinder).
Experimental results shown in reference [1] are in full agreement with a growth process driven by Eq. 4. Together with a kinetic growth process obeying Eq. 4, the structure shows a well defined geometrical shape.
With this method, patterned layers can be formed in a well defined volume and shape with the possibility to vary composition between layers.
Blood vessels with a clearly defined lumen or a well defined linear vessel shape, but not single endothelial cells, were taken into account for microvessel counting (Giatromanolaki et al, 2001).
Most of the outgrowths appeared to be spherical in shape with a well defined lumen surrounded by 2 layers of cells.
Only vessels with a well defined lumen or a linear vessel shape were taken into account.
It is formally shown that, whatever the reference shape and amplitude, the achievable tracking quality is determined by a well defined reference tracking mismatch error.
It's not like a banana that has a defined shape.
While a solid material has both a well-defined volume and a well-defined shape, a liquid has a well-defined volume but a shape that depends on the shape of the container.
A candle flame has a well-defined shape with a fixed boundary and is maintained by "metabolizing" its organic waxes and the surrounding molecular oxygen to produce carbon dioxide and water.
