A convective study of Al2O3-H2O and Cu- H2O nano-liquid films sprayed over a stretching cylinder with viscous dissipationAli Saleh Alshomrani and Taza GulEur. Phys. J. Plus, 132 11 (2017) 495DOI: https://doi.org/10.1140/epjp/i2017-11740-1