http://103.99.128.19:8080/xmlui/handle/123456789/122 Proceedings published in Dept. of Mathematics 2026-04-09T19:35:24Z http://103.99.128.19:8080/xmlui/handle/123456789/409 Title: Theoretical calculation of triple differential cross sections for ionization of H(3d) by electron Impact Authors: Banerjee, Sushmita; Dhar, Sunil Abstract: In the present work, triple differential cross sections (TDCS) are calculated for the ionization of metastable 3d-state hydrogen atoms by electron at 250 eV for various kinematic condition applying a multiple scattering theory. The present new results are very interesting and are compared with the theoretical results of hydrogenic different metastable states as well as the hydrogenic ground state experimental data. Obtained new finding results are in good qualitative agreement with those of compared theories. The present results give an great opportunity for further study of such ionization problems Description: An article of a Conference proceeding 2005-01-17T00:00:00Z http://103.99.128.19:8080/xmlui/handle/123456789/166 Title: Effects of viscous dissipation on natural convection flow over a sphere with temperature dependent thermal conductivity in presence of heat generation Authors: Karim, Rehayet; Haquea, Md. Raihanul; M. Alam, Md.; Ali, Mohammad Mokaddes Abstract: In this paper, the steady two-dimensional laminar incompressible flow over a sphere in the presence of viscous dissipation and heat generation is considered. Thermal conductivity is assumed as a linear function of temperature. The governing equations are solved numerically by numerical solution strategy as per requirement and suitability. The obtained self similar equations are then solved numerically by an implicit, tri-diagonal, finite-difference method with Keller Box scheme. Favorable comparison with previously published work is performed. Computations are performed for a wide range of the governing flow parameters such as thermal conductivity variation parameter  , heat generation parameter Q, Prandtl number Pr and Eckert number Ec. The computational findings for the dimensionless velocity, temperature profiles as well as for the skin-friction coefficient and heat transfer rate are presented in tabular form and graphically. 2014-01-01T00:00:00Z