Claude Langevin is a Canadian Postwar & Contemporary painter who was born in 1942. How much does a Claude Langevin cost? Claude Langevin's work has been offered at auction multiple times, with ...

In this paper, a fast inversion scheme for piezoelectric constants of piezoelectric transformer is proposed. The effects of material coefficients on piezoelectric transformers are investigated by ...

Air-coupled ultrasonic transducers are widely used in non-destructive testing, acoustical sonar systems, and biomedical imaging. These applications require transducers that operate effectively across ...