Robust Localization of Single Sound Source, Based on Phase Difference Regression
Recently, researchers from the Key Laboratory of Speech Acoustics and Content Understanding of the Chinese Academy of Sciences propose a regression-based method for a planar array, where the cost function is taken as the weighted square error...
Read More >>Directly Observe the Thermal Depolarization of Codoped PN High-T Piezoceramics with Simultaneously Enhanced Stability and Piezoelectricity
Recently, by selecting an A-site dopant Ca and a B-site dopant Mn, researchers observed a ‘synergistic’ doping effect, which simultaneously enhanced the high temperature stability and piezoelectricity of PN.
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Ultrasonic Batch Processing to Reduce Ultra Heavy Oil Viscosity on the Industrial Scale
An ultrasonic batch processing system with 4 ultrasonic horns whose basic frequency is 17 kHz is designed and installed in the Xinjiang oil field in the northwest of China. Pilots show that this system can be used to reduce the viscosity of u...
Read More >>How Local Resonances Affect Acoustic Wave Propagation to Detect Water Leaks in Buried Water Pipes
Researchers from the Institute of Acoustics of the Chinese Academy of Sciences and the Environment & Ground Engineering, UK & Ireland, AECOM have investigated the effect of local resonances on acoustic wave propagation for water leak detectio...
Read More >>A New and Superior Algorithm for Active Control of Impulsive Noise
To suppress impulsive noise efficiently and effectively under various situations, recently, researchers from the Key Laboratory of Noise and Vibration Research of the Chinese Academy of Sciences propose a new filtered-x affine projection sign...
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