Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2926-2945 of 4025
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Optical characterization and raman spectroscopy of aflatoxin b1 and aflatoxin-contaminated maize
(University of Nairobi, 2015)Aflatoxins are toxic and carcinogenic chemicals produced by several fungi grown in many farm produce and food spices. The naturally produced aflatoxins by fungi Aspergillus flavus and Aspergilus parasiticus are aflatoxin ... -
Optical Characterization Of Anthracene Single Crystals Using Raman And Fluorescence Spectroscopy
(University of Nairobi, 2014)In this work anthracene single crystals were investigated using Raman and fluorescence spectroscopy at room temperature. The excitation beam's wavelength was centered at 532 nm for Raman and 375 nm for fluorescence ... -
Optical Characterization Of Tit Aniumdioxide Nanoparticles Deposited Using Doctor Blade Method.
(University of Nairobi, 2014-04)Ti02 thin films were deposited onto glass substrates by Doctor Blade technique and the crystallization of Ti02 coating was then achieved through thermal annealing at a temperature of 400°C in a programmable furnace. The ... -
Optical, electrical and structural properties of zinc stannate (zn2sn04) thin films prepared by spray pyrolysis technique.
(Department of Physics University of Nairobi, 1997)Highly transparent and conducting Zn2Sn04 films have been prepared by spray pyrolysis technique. Films grown at a substrate temperature of 440°C exhibit the best optical and electrical properties. The microcrystals of ... -
Optimal Control Problem for Cholera Epidemiology
(University of Nairobi, 2018)Optimal control is vital in determining control policies for diseases that are infectious. A SIR-model with vaccination and sanitation is considered. The extant and local stability analysis of (DFE) disease-free equilibrium ... -
Optimal designs for models with covariates
(School of Mathematics, University of Nairobi, 2006)The model refers to a treatment design with one treatment at v levels and first Order regression on K continuous covariates attached to each experimental unit. The Problem is that of constructing optimal completely ... -
Optimal multi type step wise group screening designs-a Numerical method approach
(University of Nairobi, 2020)This project considers optimum stepwise group screening designs .Numerical methods are used to obtain the optimum group sizes.Newton’s method as a numerical method , is used as a mathematical tool,statistically, in the ... -
Optimal pricing of health insurance policies using credibility theory
(School of mathematics, 2012-11)This project seeks to look at pricing of annual Health Insurance policies optimally using credibility theory. This is carried out encompassing Kenyan legislation and Actuarial Board standards on credibility theory ... -
Optimal Pricing Of Medical Insurance For Formal Employees Using Empirical Bayes Credibility Model
(University of Nairobi, 2019)Through the premium, insurance cover is made possible . The study purposed to estimate optimal price of premiums paid to an insurance company to cover for medical expenditure based on historical expenditure of an ... -
Optimisation for production of fish protein hydrolysate from Nile Perch (Lates niloticus) by-products
(2014)The global rising concern for food and environmental security has forced established industries such as fish processingto explore new areas of improvement. In Kenya thus far, no studies have been carried out to explore ... -
Optimisation Of Specific Draft Requirement And Hitch Length For An Animal-Drawn Sub- Soiler: A Case Study Of Sandy Clay Loam Soils
(University of Nairobi, 2019)Land degradation is occurring very rapidly in agricultural lands in Kenya. In ASAL regions, soil compaction and poor tillage practiced has resulted in increased cost of tillage, lack of timeliness and decreased agricultural ... -
Optimising The Dose Of Embelin, A Potential Male Antifertility Agent, Using Different Routes Of Administration
(University of NairobiFaculty of Science, 1996)Reproduction is a physiological process which involves the act of mating between two members of one species and of opposite sex with consequent production of offspring. At human level this physiological process is ... -
Optimization analysis of organic carbon concentration and sedimentation rate in the Anza Graben, Kenya.
(Department of Geology, University of Nairobi, 1995)The Anza Graben is a major NW-SE structurally oriented sedimentary basin that lies in the northern part of Kenya roughly between the latitudes 0° 30'N and 4°N, longitudes 36° 30'E and 41°E. Three basins: North, Central ... -
Optimization and performance evaluation of ip lookup algorithms
(University of NairobiSchool of Computing and Informatics, 2012)The number of people accessing the internet grows exponential and soon half of the world’s population will have access to internet. New services and applications are also added daily on the popular IP networks and this ... -
Optimization methods in logic programming applied to expert systems for capital budgeting
(1992)This thesis evaluates the benefit of meshing mathematical programming and expert systems for solving capital budgeting problems, using constraint logic programming methods. A review of modelling capabilities of mathematical ... -
Optimization of acid activation and bleaching performance of local bentonite clay
(University of Nairobi, 2014)Bentonite clays from Athi River and Thika were activated using sulphuric acid at various concentrations under reflux, and investigated for their ability to bleach vegetable oil. Bleaching properties of acid-activated ... -
Optimization of analytical procedures and determination of levels of mercury, cadmium and lead in fish, water, sediments} soil and plants from Naivasha area, Kenya
(School of Biological Sciences, University of Nairobi, 1992)The analysis of heavy metals in digested samples depends on parameters such as pH, temperature, time and digestion procedures. These parameters were Investigated in order to obtain optimum experimental conditions for the ... -
Optimization of Biogas production from brewery wastewater
(University of Nairobi, 2017) -
Optimization of diet (ensiled brewer's grain) in pigs ration using a one way Manova
(School of Mathematics, University of Nairobi, 2003)A Strategy for optimising ensiled brewer's grains in ration on post-weaning, growing and finishing pig's diet is considered. The problem that relates to animal diet management varies enormously depending on objective. ...