BACKGROUND AND OBJECTIVES Mechanical indentation has been shown to increase light transmission through turbid tissue. In this study, we investigated the effects of localized indentation on the optical properties of ex vivo porcine skin specimens by dynamically monitoring diffuse reflectance spectra, light transmission, and applied load while controlling tissue thickness. STUDY DESIGN/METHODS ...

A hybrid approach to determining cornea mechanical properties in vivo using a combination of nano-indentation and inverse nite element analysis This item was submitted to Loughborough University's Institutional Repository by the/an author. A hybrid approach to determining cornea mechanical properties in vivo using a combination of nano-indentation and inverse nite element analysis. A hybrid app...

Indentation creep tests were performed on an Al-5.3mol% Mg solid-solution alloy to examine whether mechanical properties can be extracted accurately from a testpiece, as small as a rice grain. A conical diamond indenter was pressed into a test surface with a constant load F at temperatures ranging from 0.60 to 0.65 Tm (Tm: the absolute liquidus temperature). When the representative flow stress ...

Introduction: Nano-indentation has recently been employed as a powerful tool for determining the mechanical properties of biological tissues on nano and micro scales. A majority of soft biological tissues such as ligaments and tendons exhibit viscoelastic or time-dependent behaviors. The constitutive characterization of soft tissues is among very important subjects in clinical medicine and espe...

a three dimensional, compressible, steady, one phase flow of reactant-product mixture in the air side electrode of proton exchange membrane fuel cell (pemfc) is numerically studied in this paper. the mixture is composed of three species: oxygen, nitrogen and water vapor. the performance of the cell is enhanced by partial blockage of the flow field channels. various types of these blocks also ca...

abdominal mass is one of the commonest clinical findings in children. the purpose of this study was to evaluate abdominal masses in different age groups in a referral children surgical center. we retrospectively reviewed records of 325 patients (57% boys, mean age 37.7 months) admitted to amir kabir hospital in period of 12 years for abdominal mass surgery. the 4 most common abdominal masses wa...

Indentation, owing to its ability induce permanent deformation in a controlled manner even highly brittle materials that are otherwise not amenable critical mechanical testing experiments, is widely used for studying the behavior of amorphous solids. In this paper, an overview current understanding on indentation response inorganic glasses – both metallic and non-metallic presented. The stresse...