Browsing School of Science by Title
Now showing items 1-20 of 444
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20 G bps Pulse Amplitude Modulation (PAM) Format for Capacity Upgrade in Optical Communications
(American Journal of Optics and Photonics., 2019)In the fast growing society, communication is broadening so rapidly such that internet users need to access information rapidly and amount of data flowing through internet is very huge. Various ... -
Ab initio insights into Graphene-Zirconium disulfide/diselenide heterostructure as electrode material for alkali-ion batteries
(Surfaces and interfaces, 2021)In the search for an energy storage medium with higher electronic conductivity, rate performance and moderate volume expansion, van der Waals heterostructures are a promising alternative. Herein, the potential of graphene ... -
Ab-initio Simulations ofCopper Oxide Nanowires and Clusters on TiO2(101)Anatase Surface
(Journal of Physical Chemistry, 2017)Copper oxides deposited at titania surfaces have a beneficial effect on the photocatalytic activity of TiO2, but their role is not fully understood. In this work, possible nanostructures of copper oxide on TiO2 (101) have ... -
ab-initio STUDIES OF MAGNESIUM HYDRIDE AND LITHIUM
(2016-05-23)Due to the imminent exhaustion of fossil fuels, related pollution and high cost involved in conventional sources of energy, a search for renewable, environmentally friendly, cheaper and more efficient energy sources has been ... -
ab-initio STUDIES OF MAGNESIUM HYDRIDE AND LITHIUM HYDRIDE FOR HYDROGEN STORAGE APPLICATIONS: A DENSITY FUNCTIONAL THEORY STUDY
(University of Eldoret, 2013)Due to the imminent exhaustion of fossil fuels, related pollution and high cost involved in conventional sources of energy, a search for renewable, environmentally friendly, cheaper and more e cient energy sources has ... -
Ab-initio STUDIES OF STRUCTURAL, ELECTRONIC, MAGNETIC AND OPTICAL PROPERTIES OF NICKEL OXIDE
(University of Eldoret, 2014)Nickel Oxide (NiO) has many applications in solar energy utilization, due to variations in electronic, optical and magnetic properties. However, a satisfactory description of its properties is still not available. There ... -
The Acoustic Wave Propagation Equation: Discontinuous Galerkin Time Domain Solution Approach
(Applied Mathematical Sciences Vol. 13, 2019, no. 16, 753 - 767, 2019)This paper discusses a finite element method, discontinuous Galerkintime domain approach that solves the 2-D acoustic wave equation incylindrical coordinates. The method is based on discretization of thewave ... -
THE ACOUSTIC WAVE PROPAGATION EQUATION: THE DISCONTINUOUS GALERKIN TIME DOMAIN SOLUTION APPROACH
(University of Eldoret, 2019)This thesis presents a finite element method, discontinuous Galerkin time domain approach that solves the 2-D acoustic wave equation in cylindrical coordinates. The method is based on discretization of the wave field into ... -
ACTIVITY OF TEPHROSIA VOGELII CRUDE EXTRACT AGAINST LEISMANIA MAJOR IN EXPERIMENTALLY INFECTED BALB/c MICE
(University of Eldoret, 2016)Leishmaniasis, a vector-borne disease caused by obligate intra-macrophage protozoa, is endemic in large areas of the Tropics, Subtropics and the Mediterranean basin and 350 million people are considered at risk. The ... -
Adsorption of Fluoride from Water by Use of Powdered Tilapia Fish Scales
(African Environmental Review Journal (AER), 2020-12)Ingestion of adequate fluoride (F-) necessary for healthy bones and teeth is realized through food, soil and water while its excess leads to dental, skeletal and soft tissue damage. Defluoridation is one of the conventional ... -
ALGEBRA OF COUPLED ELECTRONS IN THE CO-EXISTENCE OF
(2016-05-19)Superconductivity is a phenomenon in which the d.c electrical resistance of a material vanishes completely and instantly rather than gradually when it is cooled below a certain temperature called the superconducting ... -
ALGEBRA OF COUPLED ELECTRONS IN THE CO-EXISTENCE OF SUPERCONDUTIVITY AND FERROMAGNETISM
(University of Eldoret, 2013)Superconductivity is a phenomenon in which the d.c electrical resistance of a material vanishes completely and instantly rather than gradually when it is cooled below a certain temperature called the superconducting ... -
Allelopathic Potential of Centella asiatica Leaves on Seed Germination and Seedling Growth of Selected Field Crops
(Africa Environmental Review, 2022)Centellaasiatica is a small, faintly aromatic, greenish-yellow leafy ubiquitous herbaceous plant of the Apiaceae family. It is a member of a weed community termed Hydrocotylo-Centelletum asiaticae association. Losses due ... -
Analysis and Modelling of Extreme Rainfall: A Case Study for Dodoma, Tanzania
(Asian Journal of Probability and Statistics, 2019)The analysis of climate change, climate variability and their extremes has become more important as they clearly affect the human society and ecology. The impact of climate change is reflected by the change of frequency, ... -
Analysis of CSRZ and CSNRZ Coding for DQPSK and OQPSK Transmitter Configurations for Optical Microwave Generation Signals Based on Stimulated Brillouin Scattering
(World Scientific News, 2020)The use of Carrier Suppressed Non-Return to Zero (CSNRZ) and Carrier Suppressed Return to Zero (CSRZ) modulation formats in Dense Wavelength Division Multiplexing (DWDM) channels at 1 Gb/s and 10 Gb/s is investigated. ... -
ANALYSIS OF FLUORIDE AND SELECTED HEAVY METALS IN KALES (Brassica oleracea) AND TOMATOES (Lycopersicum esculentum) FROM HORTICULTURAL FARMS IN NAKURU COUNTY, KENYA
(University of Eldoret, 2021)Recently field-grown vegetables including curly kales and endive have been reported to accumulate high fluoride levels in their leaves. As vegetables normally form an integral portion of the human diet, the occurrence of ... -
Analysis of Fluoride in Kales (Brassicca oleracea) and Tomatoes (Lycopersicum esculentum) from Nakuru County, Kenya
(African Environmental Review Journal (AER), 2020-12)As vegetables normally form an integral portion of human diet, occurrence of high fluoride in their edible portions can cause significant human exposure to these fluoride residues. The present study was carried out to ... -
ANALYSIS OF THE LEVELS OF SELECTED HEAVY METALS IN THE VICINITY OF A LEAD BATTERIES RECYCLER PLANT IN ATHI-RIVER, KENYA
(University of Eldoret, 2015)The levels of heavy metals in the environment have been increasing in the recent past as a result of human activities. Since toxicity of heavy metals is widely known, their speciation is increasingly attracting attention. ... -
Anti-Bacterial Activities of Green Synthesized ZnO and CuO Nanoparticles from Leaf Extracts of Warburgia ugandensis
(American Journal of Nano Research and Applications, 2023-07)This work reports for the first time the green synthesis of zinc oxide nanoparticles (ZnO NPs) and copper oxide nanoparticles (CuO NPs) using leaf extracts of Warburgia ugandensis as encapsulating, stabilizing, and reducing ... -
ANTI-DERMATOPHYTIC ACTIVITY OF Salvia nilotica METHANOLIC LEAF EXTRACT AGAINST Trichophyton mentagrophytes
(University of Eldoret, 2021)Conventional medicine used against dermatophytosis has resulted in treatment failure, relapses of the fungal infection and side effects due to its use. Herbalist in the Tugen community in Kenya claim that Salvia nilotica ...
