Dugwayâs Chemical Test Division successfully tests JCAD system on Stryker. Caged in a menacing looking metal grid with intricate sensory equipment attached to all sides the Armyâs M113 NBC RV Stryker vehicle sits on a dusty road at Dugway Proving Groundâs target S grid being readied by its crew for testing....
The following conditions are when secondary curvatures of the spine  develop:   Cervical-when the baby starts to hold its head up   Lumbar-when the baby starts to â¦ walk. 4 people found this useful.
Most gap graded soils have a coefficient of curvature outside the range. If we have introduced like a gap graded soil, some times an absence of intermediate particle sizes exists. So with this what happens is that, you know that particular type of soil is called gap graded soil or bimodal soil.