The vPPG signal is extracted from colour video recording of a human face in an ambient light environment. The image and signal processing operations are minimised and optimised. Three critical aspects which are performances, reduced computational time and low computational complexity are focused. ...
Alessandrini M, Biagetti G, Crippa P, Falaschetti L, Turchetti C. Recurrent neural network for human activity recognition in embedded systems using PPG and accelerometer data. Electronics. 2021;10(14):1715. ArticleGoogle Scholar Murad A, Pyun J-Y. Deep recurrent neural networks for human activi...
As this study focuses on sound analysis, we investigated recent studies on sound signal processing using AI techniques, and then discovered several studies on audio feature analysis using a spectrogram. A spectrogram image obtained by short-time Fourier transform contains rich information regarding sound...
In particular, AlN, prepared by sputtering, can be implemented in standard complementary metal oxide semiconductor (CMOS) technology, as well as the CMOS wafer post-processing [12], thereby, enabling the integration of PEH with active devices. Other piezoelectric materials such as PZT, ZnO, and ...
In this study, the critical coalescence concentrations (CCC) of selected commercial frother solutions, namely polypropylene glycols (PPG 200, 400, and 600), tri propylene glycol (BTPG), triethylene glycol (BTEG), dipropylene glycol (BDPG), and as a refer
This is due to the additional reorganization of the PPG molecules on the air/water interface, thus boosting its surface activity. Keywords: frothers; bubble coalescence; critical coalescence concentration; CCC; surface tension 1. Introduction Flotation has been used for over a century as an ...