Welded steel frames form vertical tubes that provide the rigidity needed to limit the lateral sway from wind forces.
It is a reliable and practical alternative to conventional framing systems in that it can enhance the earthquake resistance of existing and new structures and provide the rigidity needed to satisfy structural drift limits while delivering a stable and substantial energy absorption capacity.
Three investigators developed simplified analogs containing bridged rings aimed at providing the structural rigidity of the baccatin III core of paclitaxel.
Cortical bone axial rigidity distribution occupied the upper right hand quadrant of both regression figures, whereas trabecular bone axial rigidity distribution filled the lower left quadrant of both regression figures with cortical and trabecular bones from control animals providing the highest rigidity values.
Instead, blocks of tough, fibrous cells associated with the xylem (water-conducting tissue), some lignification of the most common type of cells (parenchyma) in the stem, and silicification of the epidermis (outermost layer of cells) provide the structural rigidity of bamboo stems.
The results clearly reveal that tetraiminediphenol macrocyclic framework formed by the condensation of 2,6-diformyl-4-substituted phenols with 1,2-diaminobenzene could provide the required rigidity and, therefore, has the greater ability to stabilize the central metal ion.
Calcium binding to the cadherins provides the structural rigidity of the five extracellular domains that emanate from the plasma membrane and form stable molecular interactions with cadherins on adjacent cells (Fig. 1) [ 9].
Layers of MED-2000 Silicone RTV Adhesive (NuSil Silicone Technology LLC, Carpinteria, CA) were applied to the top and bottom surfaces of each flexible TFA (Young's modulus, 3 GPa) to provide the needed rigidity for insertion).
The thick peptidoglycan cell wall, however, remains intact and provides the structural rigidity to constitute the bacterial-shaped peptidoglycan spheres of about 1 μm in size, referred to as GEM particles.
Similarly, we note that, if there are multiple distance constraints, Theorem 2 provides the criterion for rigidity up to translation, but not for global rigidity.
