Browsing by Author "Nkansah-Gyekye, Yaw"
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Item A Matlab based Graphical User Interface for Computing Optimal Diet of People Living with HIV at Asyptomatic Stage(International Journal of Computer Applications) Kowa, Yasin; Mpolya, Emmanuel; Nkansah-Gyekye, YawItem Effects of navier slip and wall permeability on entropy generation in unsteady generalized couette flow of nanofluids with convective cooling(U.P.B. Sci. Bull, 2015) Mwizu, Michael H; Makinde, Oluwole D.; Nkansah-Gyekye, YawPresent work investigates the effects of generalized Couette flow with convective cooling, Navier slip and permeable walls on entropy generation in an unsteady of water based nanofluids containing Copper (Cu) and Alumina (Al 2 O 3 ) as nanoparticles. Both first and second laws of thermodynamics are applied to analyse the problem. The nonlinear governing equations of momentum and energy are solved numerically using a semi discretization finite difference method together with Runge-Kutta Fehlberg integration scheme. Graphical results on the effects of different parameter variations on velocity, temperature, skin friction, Nusselt number, entropy generation rate, and Bejan number are presented and discussed.Item Implementation of a goal programming model for solid waste management: a case study of Dar es Salaam – Tanzania(EDP Sciences) Lyeme, Halidi Ally; Mushi, Allen; Nkansah-Gyekye, YawItem Modeling Diet Decisions for People Living with HIV in Consideration of Age, Weight, Height, and Gender Constraints(Scientific & Academic Publishing) Kowa, Yasin; Nkansah-Gyekye, Yaw; Mpolya, EmmanuelItem Modeling the SBC Tanzania Production-Distribution Logistics Network(IISTE) Dzupire, Nelson; Nkansah-Gyekye, Yaw; Mirau, SilasItem On Steady Dividend Payment under Functional Mean Reversion Speed(Journal of Mathematical Finance) Mtunya, Adeline Peter; Ngare, Philip; Nkansah-Gyekye, YawItem Optimal Investment Strategy under Stochastic Interest Rates(Journal of Mathematical Finance) Mtunya, Adeline Peter; Ngare, Philip; Nkansah-Gyekye, YawItem Second law analysis of buoyancy driven unsteady channel flow of nanofluids with convective cooling(Science Publishing Group, 2015-04-18) Mkwizu, Michael Hamza; Makinde, Oluwole Daniel; Nkansah-Gyekye, YawWe investigate the combined effects of buoyancy force and convective cooling on entropy generation in unsteady channel flow of water based nanofluids containing Copper (Cu) and Alumina (Al 2 O 3 ) as nanoparticles. Both first and second laws of thermodynamics are utilised to analyze the model problem. Using a semi discretization finite difference method together with Runge-Kutta Fehlberg integration scheme, the governing partial differential equations are solved numerically. Graphical results on the effects of parameter variation on velocity, temperature, skin friction, Nusselt number, entropy generation rate, irreversibility ratio and Bejan number are presented and discussedItem Sensitivity analysis of multi-objective optimization for solid waste management: A case study of Dares Salaam, Tanzania(BISKA Bilisim Technology) Lyeme, Halidi A.; Mushi, Allen; Nkansah-Gyekye, YawItem STEADY DIVIDEND PAYMENT AND INVESTMENT FINANCING STRATEGY: A FUNCTIONAL MEAN REVERSION SPEED APPROACH(Journal of Mathematical and Computational Science) Mtunya, Adeline Peter; Ngare, Philip; Nkansah-Gyekye, YawItem The Effect of Seasonal Weather Variation on the Dynamics of the Plague Disease(Hindawi International Journal of Mathematics and Mathematical Sciences) Ngeleja, Rigobert C.; Luboobi, Livingstone S.; Nkansah-Gyekye, YawItem The in-Human Host and in-Mosquito Dynamics of Malaria Parasites With Immune Responses(New Trends in Mathematical Sciences) Seleman A., Mohamedi; Luboobi S., Livingstone; Nkansah-Gyekye, YawItem Towards A Secure Remote Electronic Voting in Tanzania Organizational Challenges(Advances in Computer Science: an International Journal) Kimbi, Sylvester; Nkansah-Gyekye, Yaw; Michael, Kisangiri