Physics and Material Science
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Characterization of meh-ppv: pc71bm blend thin films Deposited on glass substrates by spin-coating and drop-casting techniques for photovoltaic applications
(Maseno university, 2024)The surge in population growth and modernity since the pre-industrial era has seen an increase in anthropogenic greenhouse gas emissions resulting from increased use of fossil fuels. As a result, there is increase in demand ... -
Correlation between equatorial electrojet and the occurrence of equatorial ionisation anomaly over the East African region during the solar minimum period 2008-2009
(Maseno University, 2023)In the electron density distribution at the low-latitude ionosphere, equatorial electrodynamics plays a critical role such as forecasting the dynamics and fluctuations of ionospheric plasma densities. The equatorial ... -
Experimental and computational studies of properties of thin films of cadmium-tin-oxide for manufacture of micro-electromechanical systems and for noise control
(Maseno University, 2022)The recent advancement in electronics have stimulated the high demand for semiconductor substrate materials for the printing of electronic circuits, some of which are used in the Micro-Electromechanical Systems (MEMS) ... -
Geomagnetic field variations at African equatorial regions during the ascending phase of the solar cycle 24
(Maseno University, 2022)The Earth’s magnetic field is the field of force that extends from the interior of the Earth to the outer space where it interconnects with the Interplanetary Magnetic Field (IMF). It is characterized by regular and irregular ... -
Photon Anti-Bunching Properties of the Anti-Jaynes-Cummings Model
(Maseno university, 2021)This thesis present anti-Jaynes interaction, an interaction where anti-rotating light mode couples to a two-level atom. The anti-bunching properties of the anti-Jaynes-Cummings model was explicitly demonstrated, a model ... -
The cooling effect of air on flat plate solar energy collectors
(Maseno university, 2021)Use of solar energy devices requires that they be exposed to receive maximum solar radiation. Unfortunately, the intensity of solar radiation incident on these devices varies throughout the day with the position of the sun ... -
Sensitivity of thermally deposited titanium Dioxide thin film for Liquefied petroleum gas sensing application
(Maseno university, 2010)Titanium dioxide thin films have a wide scope of application including gas sensing. Other studies have been carried on the sensing ability ofTi02 to natural gases (02, CO2 and H2) and hydrocarbons (ethanol and butane). ... -
Real- Time Human Immunodeficiency Virus test Analyzer Based on Digital Image Processing
(Maseno University, 2011)Manykinds of HIV testing kits have recently become available to be used in determining whetheran individual's blood contains HIV virus or not. In the determine method of the HIV rapidtestprocedure, when a drop of blood is ... -
Characterization of variability of Total Electron Content (TEC) over Malindi
(Maseno University, 2013)The dynamics of the ionosphere depends largely on solar activity. The attenuation of radio signals as they propagate through the ionosphere can be determined through a parameter called the Total Electron Content (TEC),which ... -
Electronic transport properties in evaporated cadmium selenide thin films
(University of Keele., 1997)Cadmium selenide (CdSe) films prepared by vacuum vapour deposition onto glass sub strates maintained at various temperatures have been studied in relation to their struc tural, optical and electrical properties. Such ... -
The Seasonal Dynamics of Equatorial Spread-F Over Puerto Maldonado - South America
(Maseno University, 2015)Equatorial spread-F (ESF) phenomenon refers to intense post-sunset ionospheric irregularity that occurs around the geomagnetic equator due to perturbations in the ambient plasma. It has remained a very active area of ... -
Investigation of some factors that lead to improved performance vis-a-vis the efficiency of single basin solar stills
(Ashdin Publishing House, 2011-01-01)More often than not, the study of solar stills and their performance is restricted to the solar radiation at the place of study, certain parameters and factors have been found to improve the performance of solar stills in ... -
Quantum entanglement properties of polarization states of a semi-classical optical parametric oscillator
(Maseno University, 2017)Entanglement is a fundamental feature of quantum mechanics which originated from the 1935 paper of Einstein, Podolsky and Rosen (EPR) and has been demonstrated in many quantum systems for development of quantum technology. ... -
Computational study of the structural, Electronic, optical and thermal properties of Hexagonal and cubic Germanium-antimony-telluride
(Maseno University, 2016)The electronic, optical and thermal properties of hexagonal and cubic phases of Ge2Sb2Te5 (GST) have been calculated using density functional theory (DFT) as implemented in the QUANTUM ESPRESSO computer package. GST is ... -
Dependence of temperature variation on the shape factor of a Solar Parabolic trough concentrator (ptc)
(Maseno University, 2018)Solar radiation energy incident on a collector can be converted into electricity using PV cells or thermal energy by means of solar thermal collectors. Solar radiation intensity is sometimes lower than required for suitable ... -
Correlation Between Geomagnetic Field Variations and the Dynamics of the Equatorial Ionosphere Over East Africa
(Maseno University, 2017)The geomagnetic field shows regular variation during geomagnetic quiet conditions. However, during geomagnetic storms, it exhibits irregular fluctuations that can induce hazardous electric currents in ground based conductor ...
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