Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) Pressure variation registered in different cells, highlighting the SL cell results, during the pressure relief exercise B; (b) Fourier transform applied to the optical signal detected by the SL and highlighted in Figure 8a, for wheelchair user breathing rate determination.
