Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2837-2856 of 4283
-
On the solution of the Fokker-Planck diffusion equation by the path integral method
(Department of Physics, University of Nairobi, 1976)A dynamical system with probability density of state satisfying the Fokker-Planck diffusion equation is considered by starting from a Langevin type of equation. The path integral method is applied in solving the basic ... -
On third order rotatability
(School of Mathematics, University of Nairobi, 1994)Third order rotatability of experimental designs, moment matrices and information surfaces is investigated, using a Kronecker power representation. This representation complicates the model but greatly simplifies the ... -
On Unitary Invariance of Some Classes of Operators
(University of Nairobi, 2020)It is a known fact in operator theory that two similar operators have equal spectra but they do not necessarily have to belong to the same class of operators. However, under the stronger relation of unitary equivalence ... -
Once Burned, Twice Shy?: Lessons Learned from the 1997-98 El-Nino.
(University of NairobiCollege of biological and physical science, 2001)No Abstract -
A one-health approach to control the incidence of rabies in the slums of Nairobi
(University of Nairobi, 2015-11)Rabies is a zoonotic disease causing 55,000 human deaths every year and the domestic dog is a main reservoir in Africa. Vaccination of the dog population effectively reduces the incidence of rabies in dog and human population. ... -
One-loop vacuum polarization in the nonlinear Rξ gauge
(1985)In the nonlinear Rξ gauge the one-loop contributions to the dynamical-gauge-field vacuum polarization are found to be separately transverse even in a spontaneously broken theory. Moreover, the theorems of DeWitt and Kallosh ... -
One-sided tests in shared frailty models
(University of Nairobi, 2007)Tests for the presence of heterogeneity in frailty models use an alternative hypothesis in which the heterogeneity parameter is subject to an inequality constraint. As a result, the classical likelihood ratio asymptotic ... -
Online Laboratory Sessions in System Design with DSPs using the R-DSP Lab
(2014)The education of students in the design of DSP (Digital Signal Processor) based systems is achieved through courses including lectures and laboratory sessions. Traditionally, the laboratory sessions take place in the ... -
The onset and cessation of the "Long Rains"in Eastern Africa and their interannual variability
(2003)Thirty years (1958–1987) of daily rainfall data for Kenya and north eastern Tanzania are analysed with the aim to characterize the interannual variability of the onset and cessation of the East African “long rains” (boreal ... -
Ontogeny Of Water Snake Foraging Ecology
(University of Nairobi,, 1982)Using an index of relative importance we analyzed the stomach contents of over 300 water snakes (Nerodia spp.). Ontogenetic changes in prey consumption are most striking in Nerodia erythrogaster (number with food in gut ... -
Op-37 Flavonoids from erythrina burttii and erythrina sacleuxii
(Department of Chemistry, University of Nairobi,, 2000)The root and stem bark of Erythrina species are widely used in traditional medicine for the treatment of microbial infections: In our interest on the phytochemistry of Erythrina species of Kenya, we have isolated several ... -
Op-38 further diterpenes from the leaf exudate of psiadia punctulata.
(Department of Chemistry, University of Nairobi,, 2001) -
Optical and electrical properties dependence on thickness of screen-printed tio2 thin films.
(University of Nairobi, 2016)Effect of film thickness on the optical and electrical properties of TiO2 thin films were studied. Thin films of different thicknesses were deposited by screen printing method on fluorine doped tin oxide coated on glass ... -
Optical and Electrical Properties of Magnesium Doped Zinc Oxide for Photovolraic Applications
(2014)This research is an experimental design which came up with the opticaJ and electrical properties of magnesium eloped zinc oxide foi; photovoltaic applications. The specific objectives are to determine the Optical properties, ... -
Optical and electrical properties of Pd doped Sn02 thin films deposited by spray pyrolysis
(University of Nairobi, 2013)Thin films of Sn02: Pd have been deposited on glass substrate at 450°C using an alcoholic precursor solution consisting of Tin (IV) Chloride (SnCl4.5H20) and Palladium Chloride (PdCl2). The influence of increasing Pd ... -
Optical Characterization of Copper Oxide Thin Films Prepared By Reactive Dc Magnetron Sputtering For Solar Cell Applications
(Department of Physics, University of Nairobi,Pwani university college, physics departmentKenyatta University, physics department, 2012)Cu2O thin films have been deposited using reactive dc magnetron sputtering technique using an Edward Auto 306 Magnetron Sputtering System. Transmittance and reflectance data in the range 300 nm-2500 nm were obtained ... -
Optical Characterization Of TiO2-bound (CuFeMnO4) Absorber Paint For Solar Thermal Applications
(University of Nairobi, 2016)Abstract A composite thin film consisting of TiO 2 (binder), uniformly mixed CuFeMnO 4 paint (solar absorber) was coated on textured aluminum sheets by dip coating. The film’s elemental analysis ... -
Optical Properties and Raman Studies of Amorphous Se-Bi Thin Films
(University of Nairobi, 2014)Flash evaporated amorphous Se_____Bi_(x = 0, 1, 2, 3, and 4 at.%) thin films of 350 پ} 10__ thickness have been investigated in the wavelength range of 200nm − 3000nm. It is found that the effect of increasing bismuth ... -
Optical Properties Of Flash Evaporated Amorphous Se100-xinx Thin Films For Cuinse2 Solar Cell Applications
(University of Nairobi, 2012)Amorphous Se100-XInX thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer ...