Browsing Research Articles [CoCSE] by Author "Nkansah-Gyekye, Yaw"
Now showing items 1-8 of 8
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The Effect of Seasonal Weather Variation on the Dynamics of the Plague Disease
Ngeleja, Rigobert; Luboobi, Livingstone; Nkansah-Gyekye, Yaw (Hindawi International Journal of Mathematics and Mathematical Sciences, 2017-08-10)Plague is a historic disease which is also known to be the most devastating disease that ever occurred in human history, caused by gram-negative bacteria known as Yersinia pestis.The disease is mostly affected by variations ... -
Implementation of a goal programming model for solid waste management: a case study of Dar es Salaam – Tanzania
Lyeme, Halidi Ally; Mushi, Allen; Nkansah-Gyekye, Yaw (EDP Sciences, 2017)Abstract – In this research article, the multi-objective optimization model for solid waste management problem is solved by the goal programming method. The model has three objectives: total cost minimization, minimization ... -
The in-Human Host and in-Mosquito Dynamics of Malaria Parasites With Immune Responses
Seleman A., Mohamedi; Luboobi S., Livingstone; Nkansah-Gyekye, Yaw (New Trends in Mathematical Sciences, 2017-08-25)In this study, a mathematical model for the in-human host and in-mosquito dynamics of malaria parasite with immune responses was formualeted and analyzed. A positive invariant region of the model was established, and a ... -
A Matlab based Graphical User Interface for Computing Optimal Diet of People Living with HIV at Asyptomatic Stage
Kowa, Yasin; Mpolya, Emmanuel; Nkansah-Gyekye, Yaw (International Journal of Computer Applications, 2015-07)Achieving basic nutritional recommendations for people liv-ing with HIV is important at all stages as the virus affects the immune system and renders an infected person to contract other infections easily. Poor nutrition ... -
Modeling Diet Decisions for People Living with HIV in Consideration of Age, Weight, Height, and Gender Constraints
Kowa, Yasin; Nkansah-Gyekye, Yaw; Mpolya, Emmanuel (Scientific & Academic Publishing, 2015)People living with HIV as well as AIDS patients, who do not receive proper and timely medical treatment, are open targets for all kinds of other infections owing mainly to their relatively weak immune systems. We emphasizes ... -
Modeling the SBC Tanzania Production-Distribution Logistics Network
Dzupire, Nelson; Nkansah-Gyekye, Yaw; Mirau, Silas (IISTE, 2017-07)The increase in customer expectation in terms of cost and services rendered, coupled with competitive business environment and uncertainty in cost of raw materials have posed challenges on effective supply chain engineering ... -
Sensitivity analysis of multi-objective optimization for solid waste management: A case study of Dares Salaam, Tanzania
Lyeme, Halidi A.; Mushi, Allen; Nkansah-Gyekye, Yaw (BISKA Bilisim Technology, 2017-11-08)In this study, a sensitivity analysis of a multi-objective optimization model for solid waste management (SWM) for Dar es Salaam city in Tanzania is considered. Our objectives were to identify the most sensitive parameters ... -
Towards A Secure Remote Electronic Voting in Tanzania Organizational Challenges
Kimbi, Sylvester; Nkansah-Gyekye, Yaw; Michael, Kisangiri (Advances in Computer Science: an International Journal, 2014-09)This paper discusses organizational challenges that hinder the implementation of secure remote electronic voting in Tanzania and proposes workable solutions to address the identified challenges. The work presented in ...