Simply supported or clamped boundary conditions are rather ideal situations difficult to satisfy from a physical viewpoint. This paper considers a more "moderate" restriction: the case of edges elastically restrained against ...

Some power ultrasonic transducers, such as Tonpilz transducers, require high-power transmitting capability as well as broadband performance. Optimized vibrational modes can achieve these requirements. This work compares ...

Objective: An experimental in vitro study was carried out to evaluate the influence of cortical bone thickness on ultrasound propagation velocity. Methods: Sixty bone plates were used, made from bovine femurs, with thickness ...

The growth and reproduction of living organisms on artificial surfaces is known as biofouling. This is a serious problem in underwater structures such as cables, boat hulls and pipelines of turbine cooling systems from ...

En este trabajo se muestra el proceso de diseño y construcción de transductores de ultrasonido para ensayos no destructivos (END) y caracterización de materiales. Para iniciar se hizo una recopilación de conceptos relacionados ...

The task of determining the physical coordinates of a target in indoor environments is still a key factor for many applications including people and robot navigation, user tracking, location-based advertising, augmented ...

Biopotentials are essential ssiignals that are immersed in the body like underwater currents in an ionic ocean. Electrodes allow their detection by transducing these ionic phenomena into electrical signg nals, feasible to ...

This investigation arose from the practical necessity of placing a centrifugal pump rigidly attached to a thin, circular cover plate of a water tank in a medium size ocean vessel. Due to lack of space, it was necessary to ...