From white noise machines to silky soft sheets and luxe eye masks, these picks are designed to help you fall asleep faster … ...

Winter is coming, and between the cold outdoors and the dry air radiating from your heaters, you’ll need backup from the best ...

Abstract: The use of guided wave ultrasonography as a means to assess cortical bone quality has been a significant practice in bone quantitative ultrasound for more than 20 years. In this article, the ...

Abstract: It is a long-lasting issue that process variations, such as residual stress and poor dimension definition, deteriorate resonant frequency control of a piezoelectric micromachined ultrasonic ...