Arapaima scales have a mineralised, hard, outer layer with a corrugated surface under which lie several layers of collagen fibres in a " Bouligand "-type arrangement.
12.
Drivers will encounter deep sand drifts and steep jump ups, as well as rolling sandy hills with limited sight lines and the deeply corrugated surfaces typical of Australian outback roads.
13.
Superimposed on the larger corrugated surfaces are two systems of smaller scale corrugations : one on a 1 3 km-scale, roughly 200 m high, and another finer about 100 500 m wide.
14.
The hard, corrugated surface of the outer layer, and the tough internal collagen layers work synergistically to contribute to their ability to flex and deform while providing strength and protection a solution that allows the fish to remain mobile while heavily armored.
15.
Noteworthy results of the study of the spectral characteristics of the double-barrier structure with a corrugated surface of the photodetector as well as sensitive to the impurity region of the spectrum ( A . V . Karimov, Yodgorova D . M ., Giyasova F . A ., Azimov T . M ., U . M . Buzrukov, Yakubov A . A . ).
