PPG is an optical technique that uses light to detect blood volume changes in the skin. As a result, PPG is widely used in ...

Abstract: The cross-correlation method plays a very important role in velocity measurement of pneumatically conveyed particles. There are still gaps in understanding of the mechanism and significance ...

Abstract: To realize flow field monitoring without interference to the flow field, this study proposes a new passive flow velocity and flow direction measurement system. This method utilizes ...

Despite its crucial role in sustaining the global meridional overturning circulation, turbulent mixing remains poorly observed, particularly in the deep ocean. We deployed 1200 kHz Acoustic Doppler ...