The influences of mechanically activated fly ash on the microstructure and thermal behaviour atmospheric-cured concrete panels have been evaluated. For this purpose, comparative analyses concretes prepared with without addition raw milled ashes were performed. was an attrition mill for 1 h. Cylindrical specimens 20% substitution large same compositions prepared. Mechanical properties measured a...

WC-Co cemented carbide has excellent mechanical properties and is widely used in many industrial applications including cold forging die cutting tools. manufactured by liquid phase sintering (LPS), a new process for densification been developed. In this study, cylindrical rod shaped tensile fatigue specimens of WC-20wt%Co were fabricated using commercial methods such as vacuum (VS), low pressur...

Background and aims. Polymerization efficacy affects the properties and performance of composite resin restorations.The purpose of this study was to evaluate the effectiveness of polymerization of two micro-hybrid, two nano-hybrid and one nano-filled ormocer-based composite resins, cured by two different light-curing systems, using Fourier transformation infrared (FT-IR) spectroscopy and Vicker...

The residual strength of rocks and rock masses is an important parameter to be constrained for analysis design purposes in many engineering applications. A envelope principal stress space typically developed using data obtained from compression tests on different specimens the same type. In this study, we examined potential use continuous-failure-state testing concept as a means constrain limit...

Abstract Latest research is focused on predicting the fatigue behavior of asphalt mixtures through cost-effective and simple test methods mastic level (asphalt binder + mineral fines). There are numerous for binders using dynamic shear rheometer (DSR). However, up to now, results different tests DSR have not been directly compared. Therefore, four mixes were prepared, each was tested with two m...

background: although, nontuberculous mycobacteria can cause disease in different organisms, they usually are not reported in most countries because scientists in general consider them as non-pathogens. but, increasing nontuberculous mycobacteria diseases occurrence has changed this belief. nevertheless, there is no meta-analysis review about prevalence of nontuberculous mycobacteria in iran. me...

Abstract Impression creep is a versatile technique that used nowadays for studying the deformation of different materials and there no tertiary stage in this method; it's non-destructive process. The present work deals with finite element analysis plastic corresponding to impression P91 steel. In FE model, 3D deformable body as specimen along rigid hollow cylindrical indenter 0.07 fillet. effec...

Blood vessels are commonly studied in isolation to define their mechanical and biological properties under controlled conditions. While sections of the wall are sometimes tested, vessels are most often attached to needles and examined in their natural cylindrical configuration where combinations of internal pressure and axial force can be applied to mimic in vivo conditions. Attachments to need...