The extraction process of crude oil requires addition of water, resulting in complex
emulsions, in which the phases must be separated before the petrochemical processing …

This study introduces an innovative approach to the layered model, emphasizing the
physical–chemical characterization of miscible liquid systems through ultrasonic techniques …

This work proposes the slope of the phase spectrum as a signal processing parameter for
the ultrasonic monitoring of the water content of water-in-crude oil emulsions. Experimental …

Sensores ultrassônicos piezoelétricos foram desenvolvidos para a caracterização de
amostras sólidas e fluidas. Porém, a caracterização de fluidos com alta opacidade, como …

To locate oil slicks, most state-of-the-art systems use synthetic aperture radar (SAR) imaging
techniques at specific incident angles. However, only a few works present a detailed …