nature displays profound preference for certain specific ratios to design her life-forms. these are geometric relationships that are transcendent and originated from sacred geometry. the view that geometry had a ritual origin is a part of a wider view that civilization itself had a ritual origin, and therefore the history of utilization of sacred geometry by man goes back to many centuries ago....

Joining by forming operations presents powerful and complex joining techniques. Clinching is a well-known process for use in sheet metalworking. Currently, clinched joints are focusing on mechanically enhanced connections. Additionally, the demand integrating electrical requirements to transmit currents will be increased future. This integration particularly important, instance, e-mobility sect...

The research presented in this paper used an innovative method to modify the configuration of adhesively bonded joints for improved mechanical performance. Additive manufacturing was employed produce sacrificial support structures with a water-soluble filament (Polyvinyl Alcohol). design freedom offered by additive makes it easy tailor fixtures any geometry, which can be accurately make desired...

In a study on ten fresh human cadavers we examined the change in the height of the intervertebral disc space, the angle of lordosis and the geometry of the facet joints after insertion of intervertebral total disc replacements. SB III Charité prostheses were inserted at L3-4, L4-5, and L5-S1. The changes studied were measured using computer navigation software applied to CT scans before and aft...

The emerging new technologies provide ever more challenges to assure the reliability of electronic products. The ever increasing demands in electronic products for higher performance, lower cost, less space (weight) is leading to ever denser interconnection needs. This makes solder joint reliability an even more important issue with the advent of new surface mount packages and the use of surfac...