Abstract: The disadvantages of ellipse fitting method based on algebraic method include its large sampling range, unclear physical explanation of the parameters of the equation, uncontrollable ...

Per the American Heart Association, one person in the U.S., every 33 seconds, faces cardiovascular disease. Entering 2026, ...

Abstract: Aiming at the demand of oxygen partial pressure measurement in aerospace and aviation, a tunable diode laser absorption spectroscopy (TDLAS) technique is proposed to realize the oxygen ...

The Oura Ring 4 Ceramic has nothing new under the hood from its predecessor, the regular Oura Ring 4 -- if you could even ...