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Sensors | Free Full-Text | Novel Design of a Multimodal Technology-Based Smart Stethoscope for Personal Cardiovascular Health Monitoring
![The Bell System technical journal . Fig. 1—The open bell stelhoseope. 1-ig. 2-(>n HmwIcs stethoscope in Fig. H, in which the .sen.sation value as interpreted by the ear is plotted in The Bell System technical journal . Fig. 1—The open bell stelhoseope. 1-ig. 2-(>n HmwIcs stethoscope in Fig. H, in which the .sen.sation value as interpreted by the ear is plotted in](https://c8.alamy.com/comp/2CNCJ54/the-bell-system-technical-journal-fig-1the-open-bell-stelhoseope-1-ig-2-gtn-hmwics-stethoscope-in-fig-h-in-which-the-sensation-value-as-interpreted-by-the-ear-is-plotted-in-transmission-units-tuconvenient-units-iigted-to-the-transmission-unit-used-in-this-paper-is-a-logarithmic-function-of-powerratio-the-number-of-transmission-units-n-corresponding-to-the-ratio-of-two-pamounts-of-power-p-and-pi-is-given-by-the-relation-a=l-logo-the-power-n-ratio-corresponding-to-n-units-is-therefore-10-for-example-an-increase-of10-tv-signifies-10-limes-as-nuich-power-of-20-tv-10-2CNCJ54.jpg)
The Bell System technical journal . Fig. 1—The open bell stelhoseope. 1-ig. 2-(>n HmwIcs stethoscope in Fig. H, in which the .sen.sation value as interpreted by the ear is plotted in
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