Abstract Background Autologus platelet gel is easy to prepare and is relatively low cost. The aim of this study was to prepare and evaluate in vitro efficacy of autologus platelet gel. Materials and Methods In this experimental study, platelet concentrate and platelet poor plasma were prepared with aphaeresis method. Thrombin was prepared by mixing the plasma with calcium. Thrombin activity...

In this study, the notch effect of different types 304 stainless steel rod is studied because problem difficulty in measuring root strain steel, and parameters annular are analyzed. The angle, depth, radius main stress field affecting notch, mathematical expression rate concentration factor derived. order to verify accuracy theory, mechanical model bar established by finite element numerical si...

This paper presents a modified high-accuracy empirical formula for the strain concentration factor in centrally-placed countersunk holes isotropic plate under uniaxial tension. Finite Element Method (FEM) was used to investigate effect of problem geometric parameters including, width and thickness, as well hole radius, countersinking depth angle on factor. The important influence Poisson’s rati...

In this research, accumulation and distribution of nickel in root, leaves and stem and grains of wheat were studied to assess the health of wheat grain for human consumption. A greenhouse experiment was conducted based on randomized complete block design with three replications. Wheat was grown under two nickel concentrations in soil (0.0 and 100 mg kg-1). At maturity, wheat was divi...