Browsing School of Pure and Applied Sciences by Author "Karanja, Stephen"

Now showing items 1-9 of 9

    • A Deterministic Model Of HIV Transmission Between Two Closed Patches Incorporating The Monod Equation 

      Mirgichan, James Khobocha; Ngari, Cyrus Gitonga; Karanja, Stephen (International Institute for Science, Technology and Education (IISTE), 2019-06)
      Among other factors, migration has significantly contributed to the spread of HIV. Recent studies have revealed that new infections occur along major transport corridors and truck-drivers have overall higher prevalence ...

    • Effects of Temperature Dependent Viscosity and Viscous Dissipation on Fluid Flow Past a Moving Flat Plate 

      Mutwiri, Erick; Mwenda, Eustace; Karanja, Stephen (International Journal of Innovative Science, Engineering & Technology (IJISET), 2016-12)
      In this study, the effects of temperature dependent viscosity and viscous dissipation on fluid flow over a moving flat isothermal plate have been investigated. A steady two dimensional laminar boundary layer flow of ...

    • Energy efficacy in confined turbulent flow field 

      Karanja, Stephen; Gatheri, Francis (Meru University of Science and Technology, 2022-06)
      Problem: Due to ever-increasing technological advancement, household energy consumption has been on the rise globally. This has led to massive depletion of the non-renewable energy sources due to the increased demand for ...

    • Modelling Miraa Addiction like a Disease Incorporating Voluntary Quitting 

      Makembo, George; Karanja, Stephen; Theuri, David Mwangi (Journal of Advances in Mathematics and Computer Science, 2017)
      This study presented a deterministic model of miraa addiction based on three compartmental classes incorporating miraaspecific attributes as well as the aspect of voluntary quitting. Our model was based on SIS ...

    • A numerical investigation of the effect of curvature and Reynolds number to radial velocity in a curved porous pipe 

      Mwangi, Daniel Matha; Karanja, Stephen; Kimathi, Mark (International Journal of Advances in Applied Mathematics and Mechanics, 2017)
      Different irrigation methods are being used in agriculture. However, due to scarcity of water, irrigation methods that use water efficiently are needed. The motivation of this study is the increasing use of porous pipes ...

    • Simulation of a Deterministic Model of HIV Transmission between Two Closed Patches 

      Mirgichan, James Khobocha; Ngari, Cyrus Gitonga; Karanja, Stephen (Journal of Advances in Mathematics and Computer Science, 2020)
      Numerical simulation of a deterministic model of HIV transmission between major cities in Kenya is carried out. The model considered two closed patches connected by the commuter movements of truck drivers being the agents ...

    • A Theoretical Model of Corruption Using Modified Lotka Volterra Model: A Perspective of Interactions between Staff and Students 

      Kawira, Mercy; Ngari, Cyrus Gitonga; Karanja, Stephen (Journal of Advances in Mathematics and Computer Science, 2020)
      Corruption is the misuse of power or resources for private gain. This undermines economic development, political stability, and government legitimacy, the society fabric, allocation of resources to sectors crucial for ...

    • Turbulent Natural Convection in an Enclosure at Varying Aspect Ratio 

      Karanja, Stephen; Sigey, Johana; Gatheri, Francis; Kirima, Eustace (International Institute for Science, Technology and Education (IISTE), 2017)
      Energy transfer mechanism in most technical flows is through turbulent natural convection due to low viscosity of the fluids used in technical applications. Consequently, there is need to establish the parameters that ...

    • Turbulent Natural Convection in an Enclosure at Varying Rayleigh Number 

      Karanja, Stephen; Sigey, Johana; Gatheri, Francis; Kirima, Eustace (International Journal of Science: Basic & Applied Research, 2017)
      Most fluids used in technical applications are of low viscosity; hence, fluid flows encountered in engineering applications are mostly turbulent. Parameters that influence the distribution of the ...