This letter describes a robust voice activity detector using an ultrasonic Doppler sonar device. An ultrasonic beam is incident on the talker's face. Facial movements result in Doppler frequency ...

Google is upgrading the ultrasonic fingerprint biometric sensor for its latest flagship smartphone release. In 2024 the Google Pixel 9 featured an ultrasonic fingerprint sensor for the first time, ...

Dive Brief: Tandem Diabetes Care and Abbott struck a partnership to develop automated insulin delivery systems using a dual glucose-ketone sensor, the companies said Tuesday. Automated insulin ...

Horizontal gas-liquid slug flows are widely encountered in important industrial processes. Bubble velocity measurement is of great significance for understanding the heat/mass transfer and flow ...