Acoustic attenuation coefficients for polycrystalline materials containing crystallites of any symmetry class.

Erratum: Acoustic attenuation coefficients for polycrystalline materials containing crystallites of any symmetry class [J. Acoust. Soc. Am. 137, EL476-EL482 (2015)].

Radiation attenuation properties of shields containing micro and Nano WO3 in diagnostic X-ray energy range

Background: It has recently been shown that the particle size of materials used for radiation shielding can affect the magnitude of radiation attenuation. Over the past years, application of nano-structured materials in radiation shielding has attracted attention world-wide. The purpose of this study was to investigate the shielding properties of the lead-free shields containing micro and nano-...

Multiple scattering theory for polycrystalline materials with strong grain anisotropy: theoretical fundamentals and applications

This work is a natural extension of the author’s previous work: “Multiple scattering theory for heterogeneous elastic continua with strong property fluctuation: theoretical fundamentals and applications” (arXiv:1706.09137 [physics.geo-ph]), which established the foundation for developing multiple scattering model for heterogeneous elastic continua with either weak or strong fluctuations in mass...

Inversion of Ultrasonic Attenuation for Textural Information of Polycrystals

The mechanical properties of polycrystalline materials depend on the individual physical properties of the constituent grains. When grains are randomly oriented with respect to a fixed coordinate system, the average elastic properties are isotropic. A polycrystalline aggregate possesses macroscopic texture, and thus exhibit anisotropic elastic properties, when the grains are preferentially orie...

Investigation of the Mass Attenuation Coefficient for Composites Containing Nano and Micro-Particles of Copper Oxide against Diagnostic X-ray

Radiation protection and the selection of suitable materials to reduce radiation effects is one of the important branches of medical science and radiation. In this paper, the mass attenuation coefficients, half value layer thicknesses and thicknesses of 0/5 mm lead of polyvinyl chloride (PVC) composites containing Nano and micro-particles of copper oxide are calculated using experimental method...