In this paper, we consider the mechanical effect of the sulfate attack on concrete.The durability analysis of concrete structures in contact to external sulfate ultra glow black soap solutions requires the definition of a proper diffusion-reaction model, for the computation of the varying sulfate concentration and of the consequent ettringite forma
The ball end mill is used as a tool for cutting the metal mold and some complicated shape lake a screw.The demand for the precise machining of the ball end milling is increasing.The ball end milling has the unavoidable problem of machining error by the elastic deformation of tool because of its low rigidity.So this report is set up the new method o
eugenia topiary spiral A change in the phase of the received signal during a total solar eclipse on 31 July 1981 is considered.Theexperimental data were obtained from the phase of the signals received by the Omega radio navigation system.The distribution path captures both the auroral oval and the mid-latitude zone.It is shown final audio sonorous
ABSTRACT Staphylococcus aureus is a major pathogen associated with important diseases in humans and animals.Macrophages are a key component of the innate immune response to S.aureus infection and play a major role in disease outcomes.To investigate the adaptive evolution of S.aureus in response to macrophages, we developed an experimental infection
Aim of study: Structural analysis of a mounted moldboard plow to redesign and optimise its frame.Area of study: Shahrekord, Iran Material and methods: In this study, a complete modeling of a three-bottom moldboard plow was conducted in Solid work 2016 and then, plow-soil interaction model developed in Abaqus 2018.The FEM-simulated draft was compare