Vol. 67, No. 2, 2021
A Study of Wave Processes in Elastic Topographic Waveguides
p. 101 abstract
Two Approaches to Solving the Problem of Diffraction on a Janus Sphere
p. 108 abstract
Levitating Force and Stability Analysis of Near-field Acoustic Levitation using Flexural Vibrations of the Plate
p. 120 abstract
An Acousto-Optic Polarization-Insensitive Two-Coordinate Deflector
p. 128 abstract
Experimental Evaluation of the Influence of the Seawater Characteristics on Spatial and Temporal Variations of the Sound Speed in the Southern Abyssal, Intermediate and Shelf Zones of the Caspian Sea
p. 134 abstract
Experiments with Vibration Displacement of Volume-Localized Clusters of a Loose Granular Medium: New Effects
p. 147 abstract
Acoustic Features of the Elastic Anisotropic Properties of Rock Samples Along the Section of the Kola Superdeep Borehole (SD-3)
p. 156 abstract
Two Dimensional Locally Resonance Phononic Crystals for the Reduction of Vibration and Noise in Wheel-driven Bus
p. 175 abstract
Direction Finding of a Source in an Acoustic Waveguide and the Angular Resolution Limit
p. 183 abstract
Phase Analysis of the Activity of a Voice Source
p. 193 abstract
Control of the Biceps Activity with the Simple Ultrasound Probe
p. 210 abstract
The Features of Measuring the Gas Flow Velocity in Pipes by an Ultrasonic Correlation Method
p. 216 abstract
Experiments on Actively Suppressing Sound Reflection and Radiation by a Piston in a Water-Filled Pipeline
p. 222 abstract