All the human blood vessels are surrounded by adipose tissue. Therefore in biomechanics of blood vessels, it is important to deal not only with the constitutive modelling of blood vessels as such but also with the mechanical properties of surrounding tissue. In this study, mechanical response of human perivascular adipose tissue that surrounds the abdominal aorta is concerned. From the performe...

The mechanism and critical conditions of rock failure in underground coal mining processes have attracted great attention. Based on the origin and properties of radon gas, we propose that radon release from underground strata to the surface occurs in two stages, i.e., the formation of free radon and the migration of radon gas. Due to its optimal combination of efficiency and low background meas...

Point load testing is used to determine rock strength indexes in geotechnical practice. The point load test apparatus and procedure enables economical testing of core or lump rock samples in either a field or laboratory setting. In order to estimate uniaxial compressive strength, index-to-strength conversion factors are used. These factors have been proposed by various researchers and are depen...

Uniaxial compression of microand nanopillars is frequently used to elicit plastic size effects in single crystals. Uniaxial tensile experiments on nanoscale materials have the potential to enhance the understanding of the experimentally widely observed strength increase. Furthermore, these experiments allow for investigations into the in-strength and to help to study tension-compression asymmet...

INTRODUCTION: There is a need for a structural fatigue test method applicable to UHMWPE acetabular liners. Yet, for these implants, there are currently no standards that specify a structural fatigue test such as those that exist for other implants. The aim of this work was to develop a simple and practical fatigue test method based on the most relevant techniques previously reported in the lite...

Using the theory of electromagnetic scattering of a uniaxial anisotropic sphere, we derive the analytical expressions of the radiation forces exerted on a uniaxial anisotropic sphere by an off-axis incident Gaussian beam. The beam's propagation direction is parallel to the primary optical axis of the anisotropic sphere. The effects of the permittivity tensor elements ε(t) and ε(z) on the axial ...

This work presents a comprehensive analysis of the SiGe band structure using a TightBinding based approach within the virtual crystal approximation. We analyze the material properties of bulk relaxed SiGe and biaxially compressed strained systems. The simulation approach has been benchmarked against experimental data wherever possible. We further investigate the effect of process induced uniaxi...

The dispersion relations for conventional uniaxial dielectric mediums may be characterized as elliptical or elliptical–like, according to whether the medium is nondissipative or dissipative, respectively. However, under certain constitutive parameter regimes, the dispersion relations may be hyperbolic or hyperbolic–like. We investigate planewave propagation in a hyperbolic/hyperbolic–like uniax...

Based on a previously proposed thermodynamic analysis[1], we study the relative stabilities of five Si phases under unaxial compression using ab initio methods. The five phases are diamond, βSn, simple-hexagonal (sh), simple-cubic, and hcp structures. The possible phase-transition patterns were investigated by considering the phase transitions between any two chosen phases of the five phases. B...