Clement Klienstreuer, a professor of mechanical and aerospace engineering at North Carolina State University, is using computer simulation and fluid dynamics for designing experimental blood vessels, arteries, and bypass grafts. With funding from the National Institutes of Health and the National Science Foundation, he is heading up a team of vascular surgeons and engineers aiming to design a better arteriovenous access graft. The grafts serve as portals through which blood passes for kidney dialysis and other procedures. Conventional designs are Teflon-based and prone to frequent failure. One of the keys to the new graft is a graft hood, which complicates its design, but improves blood flow. For a copy of the paper describing the new graft geometry, contact Linda E. Rudd, North Carolina State University Engineering Publications at email@example.com or call (919) 515-3848.
A slew of announcements about new materials and design concepts for transportation have come out of several trade shows focusing on plastics, aircraft interiors, heavy trucks, and automotive engineering. A few more announcements have come independent of any trade shows, maybe just because it's spring.
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
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