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 solutions requires the definition of a proper snoop snacks diffusion-reaction model, for the computation of the varying sulfate concentration and of the consequent ettringite formation, cou

Abstract Background Spatial accessibility to healthcare facilities has drawn much attention in health geography.In China, central and local governments have aimed to develop a well-organized hierarchical system of healthcare facilities in recent years.However, few studies have focused on the measurement of healthcare accessibility in a hierarchical

In Islam, the fundamental principle is the freedom and dignity of human beings, and captivity is viewed as an imposed and incidental condition on society.Even in situations where social restrictions are applied, such limitations, particularly the capture of prisoners, are solely intended storm pourers to serve social interests, and not as an act of

In this paper, the steady-state two-dimensional incompressible, magnetohydrodynamics, stagnation point flow and heat transfer of viscous fluid having mixed convection over the linearly shrinking porous sheet is studied.The governing non-linear partial differential equations (PDEs) are transformed into ordinary differential equations (ODEs) by exerc