A genetic algorithm was used to evolve bat-like pinna shapes for a biomimetic sonarhead. Pinnae model consisted of small re ectors placed around the transducer. Experiments with ten re ectors showed the problem of phase cancellation in the received echoes. Analysis of phase cancellation suggests more realistic pinna models for future developments.

objective: to evaluate effects ofg-csf on a cancelled art cycle due to thin endometrium. materials and methods: in a nonrandomized clinical trial from january 2011 to january 2013 in two tertiary university based hospitals fifteen patients undergoing embryo transfer and with the history of cycle cancellation due to thin endometrium were studied. intrauterine infusion of g-csf was done on the da...

The two-loop contributions to the induced cosmological constant are computed in a matterless Einstein theory of gravity expanded about a Minkowski background with no cosmological term present in the classical action. The regularization-independent cancellation of the contribution to one-loop order is found not to occur to two-loop order. Submitted to Physics Letters B * Work supported by the De...

A genetic algorithm was used to evolve bat-like pinna shapes for a biomimetic sonarhead. Pinnae model consisted of small reeectors placed around the transducer. Experiments with ten reeectors showed the problem of phase cancellation in the received echoes. Analysis of phase cancellation suggests more realistic pinna models for future developments .