We tested popular wideband O₂ controllers against lab-grade equipment to see how accurate their lambda readings really are ...

Fingertip monitors known as pulse oximeters that can be used at home to detect low blood oxygen levels (hypoxemia) give ...

We can't get enough of our Suunto Vertical 2 — this rugged smartwatch has everything athletes and outdoor explorers may ever ...

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Abstract: We report the fabrication and characteristics of a two-port surface acoustic wave (SAW) resonator coated with graphene oxide (GO) as a sensing film only onto the electrodes of the reflectors ...

Abstract: Severe weather, such as rainstorms, significantly increases the wetness of expressway pavement, which seriously affects road traffic safety. Therefore, achieving low cost, high performance, ...