Recently developed new transducers for ultrasonic transmission, which can be embedded
right into concrete, are now used for non-destructive permanent monitoring of concrete. They …

Coda wave interferometry (CWI) is a sensitive ultrasound method for the detection of weak
and local changes in complex inhomogeneous media. In a nonlinear modification of the …

The purpose of this research is to develop a visual demonstration of time reversal focusing
of vibrations in a thin plate. Various plate materials are tested to provide optimal conditions …

Time reversal (TR) is a signal processing technique that can be used for intentional sound
focusing. While it has been studied in room acoustics, the application of TR to produce a …

Time reversal is a technique to focus wave energy to a selected point in space and time,
localize and characterize a source of wave propagation, and/or communicate information …

Microseismic events generate compressive waves and shear waves, which can be recorded
at receivers. We present a theory that shows how elastic P and S waves separately …

This paper presents a time-reversal (TR) super-resolution algorithm which produces a point-
like enhanced focal-resolution of experimental Aeolian tone source using iterative …

The Time Reversed Elastic Nonlinearity Diagnostic (TREND) has a long history of
successful nondestructive detection of cracks in solids using nonlinear indicators. Recent …

Biomedical imaging systems incorporating both photoacoustic (PA) and ultrasound
capabilities are of interest for obtaining optical and acoustic properties deep in tissue. While …

We suggest an experimental realization for a new concept of chaotic transducer based on
memristors and specifically devoted to the optimization of ultrasonic excitation involved in …