Mechanical seals are mechanisms that used to prevent fluid leakage. Since the seal surfaces in contact with one another, hydrodynamic and forces functions of surface roughness. Additionally, since lubrication regime under specific operating conditions such as low speed or high load causes operate mixed regime, thus asperities plays an important role. The primary purpose this paper is apply load...

A mathematical model has been developed and, on its basis, analytical solutions have found for the resulting "reduced" electroelastic characteristics, in particular, deformation (shear) piezomodules and dielectric permeabilities of a transversal-isotropic piezoelectric material (composite), taking into account corrections due to presence mechanical axial stresses electrodeformational reorientat...

Tendons are able to remodel their mechanical and morphological properties in response to mechanical loading. However, there is little information about the effects of controlled modulation in cyclic strain magnitude applied to the tendon on the adaptation of tendon's properties in vivo. The present study investigated whether the magnitude of the mechanical load induced as cyclic strain applied ...

Low, stable friction, a higher load-carrying capacity, and lower leakage of sealed blood are required for mechanical seals in implantable ventricular assist devices. One solution is to apply surface texture to the mechanical seal surface, consisting of self-mated silicon carbide. However, the effect of surface texture on the frictional properties of mechanical seals under blood sealing conditio...

Due to the increasing load in backpacks and other load carriage systems over the last decades, load carriage system designs have to be adapted accordingly to minimize discomfort and to reduce the risk of injury. As subject studies are labor-intensive and include further challenges such as intra-subject and inter-subject variability, we aimed to validate an instrumented dummy as an objective lab...

Intradiscal and intervertebral pressure transducers were developed. They were used to map the pressures in the nucleus and within the annulus of the human spinal segments. Their stressrelaxation were recorded over a period of time for nucleus pressure, applied load, and peripherial strain against time. The results show that for normal discs, pressures in the nucleus are viscoelastic in nature w...