Abstract Different loading protocols have been developed in the past to investigate creep properties of materials using instrumented indentation testing technique. Recently, a new method was presented, which contact pressure is kept constant during test segment, similar stress applied uniaxial experiment. In this study, results tests are compared and load hold experiments on ultrafine grained C...

Contact lens wearers are at great risk of developing microbial keratitis because of incorrect usages and unhygienic maintenance of contact lenses. Therefore, the present study was planned to provide data that will be helpful in selecting the anti-microbial to cure microbial keratitis. One hundred bacterial isolates from conjunctiva of contact lenses wearer were isolated, identified and subjecte...

We introduce a novel method to correct for imperfect indenter geometry and frame compliance in instrumented indentation testing with a spherical indenter. Effective radii were measured directly from residual indentation marks at various contact depths (ratio of contact depth to indenter radius between 0.1 and 0.9) and were determined as a function of contact depth. Frame compliance was found to...

BACKGROUND Universal HIV testing/treatment program has currently been suggested and debated as a useful strategy for elimination of HIV epidemic in Africa, although not without practical issues regarding the costs and feasibility of a fully implemented program. METHODS A mathematical model is proposed which considers two levels of detection of HIV-infectives through contact tracing of known i...