Diffraction of a hydroacoustic field on an elastic cylindrical shell with a covering was considered. Conditions allowing minimization of the scattered field at combined selection of impedances were obtained.
The diffraction of sound by a radially laminated isotropic thermoelastic cylindrical shell is considered. The system of equations for small perturbations of a hollow thermoelastic cylinder is reduced to a system of ordinary differential equations, the boundary-value problem for which is solved by...
The directivity of acoustic vector sensor (AVS) will be distorted by the sound diffraction of the AVS carrier. A common AVS carrier in accordance with its acoustic characteristics can be approximately classified into three types: absolute soft air cavity, absolute rigid solid metal body and elast...
Diffraction of neutrons in crystals under influence of a sound wave is considered. The probability of scattering of neutrons at the elastic interaction with the crystal is calculated. On the contrary, scattering of neutrons by an acoustical phonon has inelastic character. The possibility to contr...
Recent high-pressure studies have shown that an electronic spin transition of iron in ferropericlase, an expected major phase of Earth's lower mantle, results in changes in its properties, including density, incompressibility, radiative thermal conductivity, electrical conductivity, and sound vel...
Moessbauer and magnetic characterization of polymer-dispersed I3-Fe2O3 nanoparticles treated under different chemical processes are reported in this work. X-ray powder diffraction analysis provides a mean particle size of D ~ 8.0 nm. Whereas Moessbauer spectroscopy data suggest the presence of on...
The name "Gum Metal" has been given to a set of I2-Ti alloys that achieve exceptional elastic elongation and, with appropriate preparation, appear to deform by a dislocation-free mechanism triggered by elastic instability at the limit of strength. We have studied the compressive deformation of th...
The diffraction of neutrons is considered in crystals under the influence of a standing sound wave. The scattering probability is calculated for the elastic neutron-crystal interaction, whereas the neutron-standing sound wave interaction can be either elastic and inelastic. The possibility of sho...
In a previous paper we provided an analytical solution for the problem of diffraction of plane surface waves by a suspended hollow cylindrical shell structure. Following on from that work, in this paper we formulate and solve the related problem of radiation of ocean waves by an oscillating surfa...
Preparation and characterization of lamellar magnesium hydroxide (Mg(OH)2) thin films on cotton fabrics are reported in this paper. Mercerized cotton fabrics were treated with citric acid, so carboxyl groups were introduced to the surface of the fabrics. Mg(OH)2 seeds were first adsorbed on the c...
The presence of thermally induced residual stresses, created during the industrial direct chill (DC) casting process of aluminum alloys, can cause both significant safety concerns and the formation of defects during downstream processing. Although numerical models have been previously developed t...
