background: fatty acids are the main compounds in edible oils. oil thermal stability depends on the composition of fatty acids. so, this study was conducted to investigate the effect of fatty acid composition on the oxidative stability of extra virgin olive oil during heating process.  methods: totally, eight virgin olive oil samples, including five imported oils from market place of mahabad an...

loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. one of the most important durability problems in diesel engines is due to the cracks valves bridge area. the purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. in this article, mechanical prope...

This research develops thermo-elastic analysis of a functionally graded cylinder under thermo-mechanical loadings. Heat conduction equation in cylindrical coordinate system is solved. Thermal conductivity coefficient is graded along the radial direction. By considering a symmetric distribution of temperature, loading and boundary conditions, strain-displacement and stress-strain relations can b...

considering high population and hot and arid climate in most cities in iran, creating optimum thermal comfort during the hot periods is necessary. an experiment was conducted to examine the effect of percentage vegetation and hard surfaces on changes of temperature, humidity and thermal comfort of in three urban sites and mashhad weather station was investigated. climate and recorded data from ...

Control volume finite difference analysis of the transient temperature distributions and associated induced thermal stresses in Ghana Research Reactor-1 (GHARR-1) Reactor vessel due to coolant heating has beenmodelledto investigatethe structural integrity of thevessel after 20 years of operation. Theinduced thermal stresses within the thickness of the cylindrical reactor vessel were also solved...

Heat shock produces cellular tolerance to a variety of adverse conditions; however, the protective effect of heat shock on renal cell ischemic injury remains unclear. Protein kinase C (PKC) has been implicated in the signaling mechanisms of acute preconditioning, yet it remains unknown whether PKC mediates heat shock-induced delayed preconditioning in renal cells. To study this, renal tubular c...