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تعداد نتایج: 7308803 فیلتر نتایج به سال:
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
Abscessos retrofaríngeos são geralmente resultantes de processos infecciosos envolvendo as vias aerodigestivas superiores, bem como processos traumáticos, como ingestão acidental de corpo estranho ou intubação orotraqueal traumática. Acometem, na maioria dos casos, crianças de até cinco anos, acarretando sintomas iniciais inespecíficos como irritabilidade, inapetência e febre; com a progressão ...
abstract biometric access control is an automatic system that intelligently provides the access of special actions to predefined individuals. it may use one or more unique features of humans, like fingerprint, iris, gesture, 2d and 3d face images. 2d face image is one of the important features with useful and reliable information for recognition of individuals and systems based on this ...
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