Recent studies have demonstrated a role for the elastic protein titin in active muscle, but the mechanisms by which titin plays this role remain to be elucidated. In active muscle, Ca(2+)-binding has been shown to increase titin stiffness, but the observed increase is too small to explain the increased stiffness of parallel elastic elements upon muscle activation. We propose a 'winding filament...

The manufacturing process of robotic coreless filament winding has great potential for efficient material usage and automation long-span lightweight construction applications. Design methods quality control rely on an adequate digital representation the fabrication parameters. most influencing parameters are related to resin impregnation fibers applied fiber tension during winding. end-effector...

To overcome the challenge of upcycling plastic waste into 3-D printing filament in distributed recycling and additive manufacturing systems, this study designs, builds, tests validates an open source diameter sensor for winding machines. The modular system multi-axis optical control recycled 3-D-printer makes it possible to analyze surface structure processed filament, save history measurements...