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Characterization of Vibrio cholerae Bacteriophages Isolated from the Environmental Waters of the Lake Victoria Region of Kenya
(2013)
Over the last decade, cholera outbreaks have become common in some parts of Kenya. The most recent cholera outbreak occurred in Coastal and Lake Victoria region during January 2009 and May 2010, where a total of 11,769 ...
Surface Photovoltage Study of Surface Defects on Co-Doped TiO2 Thin Films Deposited by Spray Pyrolysis
(University of Nairobi, 2016)
Surface photovoltage (SPV) spectroscopy is a powerful tool for studying electronic defects
on semiconductor surfaces, at interfaces, and in bulk for a wide range of materials. Undoped and
Cobalt-doped TiO2 (CTO) thin ...
A Simplified Simulation Procedure and Analysis of a Photovoltaic Solar System Using a Single Diode Model
(University of Nairobi, 2020)
A single diode model for a photovoltaic solar module is the most ideal and
quick way of analyzing the module characteristics before implementing them
in a solar plant. Solar modules manufacturers provide information for ...
Effects of Substrate Radial-Position Relative to the Sputter-Gun Axis on the Electrical, Optical and Structural Properties of ZnO Thin Films Deposited by Reactive Direct Current Magnetron Sputtering
(University of Nairobi, 2018)
ZnO thin films were deposited using reactive direct current (dc) magnetron sputtering on glass
substrates placed at seven variable radial positions (-1, 0, 1, 2, 3, 4 and 5 cm) relative to the
sputter-gun (target) axis. ...
Perpendicular magnetic anisotropy in Mn2VIn (001) films: An ab initio study
(University of Nairobi, 2017)
First principles study of the magnetic anisotropy of Mn2VIn (001) films show perpendicular magnetic anisotropy (PMA), which increases as a function of the thickness
of the film. Density functional theory (DFT) as implemented ...
Compositional and Thickness Effects on the Optical Properties of Zinc– Doped Selenium–Antimony Thin Films
(University of Nairobi, 2018)
Chalcogenide system of antimony (Sb)-selenium (Se)-zinc (Zn) system is a promising semiconductor for phase change memory devices due to its thermal stability and low power consumption. The study investigated the effect of ...
Determination of heavy metals and nutrients in rivers Naka and Irigu, Chuka using aas uv/visible spectrophotometry
(University of Nairobi, 2014)
Levels of concentration of heavy metals
(lead, cadmium, arsenic and mercury) and nutrients
in
rivers
Naka and Irigu
were determined in the first three months (January, February and March
,
2013
) and variation
downstream ...
Photocatalytic degradation of 4-chlorophenol by titanium dioxide: role of annealing temperature and morphology
(Journal of Applied Sciences and Environmental Management, 2020-01)
This work investigates the degradation rate of 4-cholorophenol using Titanium dioxide photocatalysts. Chlorophenols and their compounds are a nuisance as they are recalcitrant to degradation in the environment. Three ...
Water and the UN sustainable development goals
(University of Nairobi, 2022)
Water is essential for life, but we need to balance human needs with those of the environment
on which we depend for our wellbeing, our health and much of our wealth. Not all of us are lucky
enough to have access to ...
The Role of ICT Tools in the Access of Climate Information by Rural Communities
(University of Nairobi, 2019)
This paper, seeks to explore how rural communities especially women in Kitui county use ICT tools to access localized climate information and how Digital Capital facilitates or impedes the process. Our view is that the ...