Browsing School of Biological, Physical, Mathematics & Actuarial Sciences by Title
Now showing items 80-99 of 246
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Evaluation of CO2 in Saline Aquifers under Deep Ground Water Systems in Urumqi River Basin of Xinjiang, China
(Ecological Engineering & Environmental Technology, 2021-09-17)The future emissions of carbon dioxide (CO2) are likely to increase beyond the current levels due to rapid industrialization in China. Several methods have been proposed as possible mitigation strategies to reduce the ... -
Evaluation of seasonal variation of MODIS derived leaf area index at two European deciduous broadleaf forest sites
(Elsevier, 2005)We present an evaluation of the operational MODIS Leaf Area Index (LAI) product over two temperate deciduous forests and focus on the seasonal variation. Two EUROFLUX beech (Fagus sylvatica) sites, Hesse, France and Sorø, ... -
Evaluation of Textile Substrates for Dispensing Synthetic Attractants for Malaria Mosquitoes
(BMC- Parasites & Vectors, 2014-08-16)The full-scale impact of odour-baited technology on the surveillance, sampling and control of vectors of infectious diseases is partly limited by the lack of methods for the efficient and sustainable dispensing of attractants. ... -
Extensions of Lefkovitch Matrix for Modeling Invasive Cestrum Aurantiacum Population Dynamics
(KEFRI/, Jaramogi Oginga Odinga University of science and Technology., 2020)Modeling of invasive species using stage based matrix methods can be exploited to understand population dynamics of plants using stage based Leftkovitch matrix models. This study reviewed and extended the stage based matrix ... -
Extraction of zero coupon yield curve for Nairobi securities exchange: finding the best parametric model for East African securities markets
(Science Signpost Publishing, 2015)We seek to construct a zero coupon yield curve (ZCYC) for Nairobi Securities Exchange (NSE). The objective of this paper is to construct a ZCYC that is differentiable at all points and at the same time, produces continuous ... -
Factors that Influence Adoption of New Improved Wheat Varieties by Farmers in Nakuru and Narok, Kenya
(European Journal of Agriculture & Food Science, 2022-04-14)This study examines the factors that influence the adoption of new improved wheat varieties (NIWV) by wheat farmers in Nakuru and Narok counties in Kenya. Cross-sectional data from 344 randomly selected wheat farmers from ... -
Field Evaluation of a Push-Pull System to Reduce Malaria Transmission
(Plos One, 2015-04-29)Malaria continues to place a disease burden on millions of people throughout the tropics, especially in sub-Saharan Africa. Although efforts to control mosquito populations and reduce human-vector contact, such as long-lasting ... -
Fine tuning the microenvironment of [EuW10O36]9- anion leads to the large enhancement of the red light luminescence
(Elsevier, 2017-12)The polyoxometalate (POM) anion of europium (III) decatungstate [EuW10O36]9-exhibits great luminescence quantum yields of approximately 67% but suffers reduced red light emissions that are due to the low 5D0→7F2 transmissions. ... -
Fine Tuning the Microenvironment of [Euw10o36]9- Anion Leads to the Large Enhancement of the Red Light Luminescence
(North-Holland, 2018-04-01)The polyoxometalate (POM) anion of europium (III) decatungstate [EuW10O36]9- exhibits great luminescence quantum yields of approximately 67% but suffers reduced red light emissions that are due to the low 5D0→7F2 transmissions. ... -
Finite difference solution of (1+1) sinegordon equation: A mathematical model for the rigid pendula attached to a stretched wire
(The SIJ Transactions on Computer Science Engineering & its Applications (CSEA), 2015-04)The nonlinear (1+1) Sine-Gordon equation that governs the vibrations of the rigid pendula attached to a stretched wire is solved. The equation is discretized and solved by Finite Difference Method with specific initial and ... -
Finite difference solution of (2+1)-dimensional sine-gordon equation: A model for investigating the effects of varying surface damping parameter on josephson current flowing through the long josephson junction
(International Journal of Science and Research (IJSR), 2015)Modeling of some physical phenomena and technological processes taking into account dissipation leads to the Sine-Gordon equation with the first time derivative. The (2+1) Sine-Gordon equation with the first time derivative ... -
Finite element approach to the solution of fourth order beam equation
(IJESM, 2013-06)Finite element method is a class of mathematical tool which approximates solutions to initial and boundary value problems. Finite element, basic functions, stiffness matrices, systems of ordinary differential equations and ... -
Fitting a Markovian Queuing Model to Bus Park Revenue Collection Point in Kisii Town, Kenya
(International Journal of Statistics and Applied Mathematics, 2019)In queuing theory one deals with the mathematical analysis of the performance of queuing systems. In our daily lives customers encounter queues while seeking services in institutions. The increase in the number of customers ... -
Fixed Points Approximation for Non Expansive Operators in Hilbert Spaces
(Int. J. Open Problems Compt. Math, 2/2/2021)Approximations of fixed points have been done in different space and classes. However, characterizations in norm attainable classes remain interesting. This paper discusses approximation of nonexpansive operators in Hilbert ... -
Forecasting Monthly Sugar Cane Yields Using Box-Jenkin’s Predictive Models in Kenya
(International Journal of Statistics and Applied Mathematics, 2019-10-24)Sugarcane is the main raw material in the production of sugar in Kenya. The supply of sugarcane affects directly the quantity of sugar supplied in the markets. Low supply of sugarcane leads to a decline in the amount of ... -
Forensic estimation of time of death: A mathematical model
(International Journal of Management, IT and Engineering, 2013-07)In this paper we establish the exact time of death of a murdered person. This leads to an ordinary differential equation whose solution has been analyzed to provide the approximate time of death. Forensic expert will try ... -
Formulating Black Scholes Equation Using a Jump Diffusion Heston’s Model
(International Journal of Statistics and Applied Mathematics, 12/7/2021)In modern financial mathematics, accurate values are obtained by taking into account a considerable number of more realistic assumptions in logistic Black Scholes equation. The aspects considered here are cost of transactions ... -
Formulation of a Four-Species Food Web System with Prey Refuge and Holling Type III Functional Response
(World Wide Journal of Multidisciplinary Research and Development, 2023-01)The coexistence of interacting biological species is a vital issue for the management of existing resources and the prediction of the long-term survival of each species. Many species become extinct due to several factors ... -
Functional convergence in water use of trees from different geographical regions: a meta-analysis
(Springer-Verlag Berlin Heidelberg, 2013-06)Functional convergence in water use of trees across species from diverse geographic locations was examined using data on tree water use parameters, with the intention of gaining an understanding on the capacity for water ... -
Functions of multi-pendula system spatial motion
(Published by The Standard International Journals, 2017)A study has been done using generalized coordinates system with the application of the Lagrangian formalism for n mass units linearly connected to move in space. Lagrangian equations have been developed and used throughout ...