BACKGROUND AND AIM Thermal discomfort often affects prosthesis wearers and could be addressed by increasing liner thermal conductivity. This note explores a liner made from thermally conductive silicone and two additional alternative liner designs. TECHNIQUE Thermally conductive silicone was used to create a conductive liner and a hybrid liner. Additionally, one with open elements was made. T...

This paper presents a study about the buckling behavior of thin stainless-steel lining (SSL) for trenchless repair urban water supply networks under negative pressure. The critical pressure and displacement (p–δ) curves, temperature changing hoop axial strain monitoring section changes with system (p–ε) action different diameters, wall thickness ventilation modes were obtained through five grou...

BACKGROUND The mechanical properties of alumina ceramic, now in its third generation, have been markedly improved through the evolution of design features and manufacturing processes and the introduction of proof-testing. Nonetheless, because of the lack of ductility of alumina ceramic, there is concern regarding the risk of fracture during insertion or in vivo use. The purpose of the present s...

A high incidence of acetabular osteolysis (43%), associated with osteolytic lesions in the proximal femur (22.6%) and leading to a high revision rate, was experienced with the Omnifit total hip prosthesis. We reviewed the clinical and radiological results with 429 Omnifit total hips in 356 patients after a mean follow-up of 60 months. Time to revision and wear of the polyethylene liner with dif...

The aim of the present research is to simulate the heat treatment process of the autogenous grinding (AG) shell liner of Cr-Mo steel in different quenching media (still air, air blowing, oil and water) using ABAQUS software, in order to calculate the cooling curves. In this regard, the microstructure and hardness for each arbitrary point within the mill liner's bulk could be predicted based on ...

The oxidation performance of silicon carbide (SiC) coating on nuclear fuel particle and the subsequent effect mechanical integrity was investigated. effects steam content phase composition microstructure SiC layer at different temperatures were discussed. Reaction rates with found to obey liner-parabolic law. fracture strength shell evaluated, which dominated by thickness variation SiC. Further...

PURPOSE Dissociation of the polyethylene liner is a known failure mechanism of the Harris Galante I and II uncemented acetabular components. The outcomes of revision surgery for this indication and the influence of time to diagnosis are not well described. METHODS We report a series of 29 cases revised due to this failure mechanism. The median time from primary to revision surgery was 13 year...

Cementless acetabular components are associated with a significant incidence of polyethylene wear and secondary osteolysis. 3-dimentional (3-D) porous coating and enhanced shell to a liner fixation are expected to reduce the polyethylene wear and to increase the longevity of an acetabular cup. The authors report the early clinical outcome with a cementless acetabular cup, Regenerex Ringloc+ (Zi...