FAR-FIELD ULTRASONIC IMAGING USING HYPERLENSES

Far-field ultrasonic imaging using hyperlenses

Abstract Hyperlenses for ultrasonic imaging in nondestructive evaluation and non-invasive diagnostics have not been widely discussed, likely due to the lack of understanding on their performance, as well as challenges with reception of the elastic wavefield past fine features.This paper discusses the development and application of a cylindrical hyp

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Morphological variations of the labial frenum, type of attachment and presence of diastemas: integrative review

ABSTRACT Objective: The aim of the present literature Balloons Supershapes review was to compile data on the frequency of morphological and attachment types of the upper and lower labial frenum in different populations and investigate the association between the attachment level of the upper labial frenum and the occurrence of diastemas.Methods: Se

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