new edible composite films formed from salep (orchis mascula) and 10%, 20%, and 30% (w/w) oleic acid were prepared by emulsification with the aim of improving the water vapor barrier and mechanical properties of the film. as oleic acid concentration increased up to 30% (w/w), oxygen permeability (27%), elongation at break (86%) and thickness (2%) of salep films increased significantly and the t...

in this paper the effect of using various models for conductivity and viscosity considering brownian motion of nanoparticles is investigated. this study is numerically conducted inside a cavity full of water-al2o3 nanofluid at the case of mixed convection heat transfer. the effect of some parameters such as the nanoparticle volume fraction, rayleigh, richardson and reynolds numbers has been exa...

background: obesity is a major problem in both developed and underdeveloped countries. the aim of this study is to investigate the effects of a physical education program (pep) on promoting health belief model (hbm) scores, increasing physical activity (pa), and reducing obesity among iranian high school students. methods: this quasi‑experimental study was accomplished at four high schools that...