Muitos relevos graníticos da Província Borborema se encontram no Domínio Ceará Central, que constitui um compartimento tectônico sofreu soerguimentos ao longo das fases rift e pós-rift do sistema Cariri-Potiguar. Esses maciços apresentam-se dissociados, em virtude maior resistência aos processos denudacionais, relação embasamento encaixante. O presente trabalho visa propor uma interpretação geo...

Doppler-shifts are a rich source of information not exploited by commercial ultrasonic range sensors for robots. Bats use Doppler-shifts for several tasks such as obstacle avoidance and prey capture, hence our motivation for incorporating the use of Doppler to mobile robot navigation. In this work we compare two different cochlear filterbank models (linear and gamma-tone) together with two meth...

This work presents an evolutionary approach to pinna design. Narrowband echolocating bats move the pinna to alter the directional sensitivity of their perceptual systems. Adding pinnae to RoBat--a biomimetic sonarhead mounted on a mobile robot--is the goal of this work. After a description of the earlier work on artificial pinnae consisting of multiple reflectors around the transducer, an acous...

in the centeral iranian volcanic belt (civb), north-west of shahre-babak, in area of javazm, dehaj and khabr, about 20 plutonic porphyritic tonalitic to granodioritic masses (1-50 km2) are intruded into a varity of rock sequences from eocene to early miocene in age. tonalitic and granodioritic rocks are some part of dehaj-sardoieh belt and having early miocene age. the civb contains intrusive a...

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