The effect of exothermic reaction associated with activation energy in hydromagnetic convection heat transfer flow of Water based (MoS2 – SiO2 / H2O) hybrid nanofluid through a cylindrical annulus with variable viscosity: Darcy-forchheimer model. Indian Journal of Biochemistry and Biophysics (IJBB), [S. l.], v. 63, n. 4, p. 453–468, 2026. DOI: 10.56042/ijbb.v63i4.22123. Disponível em: https://or.niscpr.res.in/index.php/IJBB/article/view/22123. Acesso em: 14 may. 2026.