It's about maintaining elastic connections.
A common design approach of maintaining elastic behavior in the substructure is considered to avoid inelastic behavior below the ground surface, where the damage would be difficult to detect or to repair.
However, the patency of the larger airways is maintained by elastic and cartilaginous support, so surfactant is unlikely to be critical in this region.
The behavior of the soil-steel bridge foundation and pedestals was idealized as elastic beams for the 2D analyses and as elastic plates for the 3D FE analyses, which was used to maintain the elastic characteristics under load.
In order to maintain the elastic condition, columns are designed to sustain larger seismic load by multiplying the nominal seismic load with a Magnification Factor.
Elastin, a structural protein distributed in the extracellular matrix of vascular tissues, is critical to maintaining the elastic stability and mechanical properties of blood vessels, as well as regulating cell-signaling pathways involved in vascular injury response and morphogenesis.
Decreasing the Mw of alginate using irradiation (e.g., irradiating at dose of 2 Mrad) decreased the low shear viscosity of 2% (w/w) pre-gelled solutions from 1000 to 4 cP, while maintaining high elastic moduli, once cross-linked to form a gel.
All of the slabs showed typical flexural behavior under two-way bending: maintaining an elastic state until cracking, inelastic behavior after cracking, and failure with concrete crushing at the top of the slab surface after the bottom rebars yielded.
In contrast, the non-isolated RC structure was found to maintain an elastic state under small seismic loads, but cracks occurred in a portion of a structural member at under 0.22 g.
