Humidifiers may help people sleep better, especially those with a cold, allergies, or obstructive sleep apnea.

Abstract: In this paper, a strategy to capture individual micrometal wires in air by ultrasound is demonstrated. Curved and flattened tip of a vibrating needle excited by a sandwich-type transducer, ...

Abstract: This paper leverages phased array techniques to determine the positions of multiple reflectors in 3-D space using ultrasonic sensing. The design of a low-cost sensor, consisting of a single ...

Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, 19857-17443 Tehran, Iran Department of Chemistry, Sharif University of ...