01172nab a2200229uuc4500 1316364 20240202111129.0 130219e20100701 eng 1316364 comduadb eng Filipich, C.P. aut aut 656509 The power series method in the effectiveness factor calculations In the present paper, exact analytical solutions are obtained for nonlinear ordinary differential equations which appear in complex diffusionreaction processes. A technique based on the power series method is used. Numerical results were computed for a number of cases which correspond to boundary value problems available in the literature. Additionally, new numerical results were generated for several important cases. Difusión 894 Reacción 67774 Serie de potencias 60901 Villa, L. T. aut aut 326608 Grossi, R.O. aut aut 645425 Investigación Aplicada Latino Americana (Bahía Blanca, Argentina) Vol. 40, No. 03, Jul. 2010, 207-212 495513 0327-0793 123981 ARIMP 642029 642029