School of Physical Sciences (Phys-Sciences) Collections: Recent submissions
Now showing items 141-160 of 198
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The effects of PMD in buried and aerial single mode and polarization maintaining fibers and performance of direct and external modulation techniques at high speed data rate
(Makerere University, 2019-06)Optical fiber transmission is greatly affected by dispersion and in this study, we experimentally investigate angular displacement and speed of state of polarization in Single Mode Fibers (SMF) and Polarization Maintaining ... -
Utilisation of excess power generated by stand-alone solar photovoltaic system: a case study in Uganda
(Makerere University, 2019-11-25)Stand-alone solar PV systems are increasingly installed worldwide. For reliability, these systems are mostly oversized because of the intermittent nature of the source of energy and to cater for days of autonomy. During ... -
Indoor radon concentrations in the dormitories of selected secondary schools in Otuke District, Northern Uganda
(Makerere University, 2019-12-05)Inhalation of radon and its progeny is the most significant source of natural radiation exposure to human population. Over 50 % of the natural background radiation comes from radon (222Rn). This study measured background ... -
Assessment of organochlorine pesticide residues in blood and placenta tissues of mothers living in Kanungu District and Kampala Capital City
(Makerere University, 2019-12)This study determined the levels of organochlorine pesticides in blood and placenta tissues of mothers from Kanungu District (N=26) and Kampala Capital City (KCC) (N=26). Samples for Kanungu District were collected from ... -
Source rock maturation and hydrocarbon generation evaluation using 3D Basin modelling
(Makerere University, 2019-11)The Semliki basin is located in the Albertine Graben which is part of the western arm of the East African Rift System (EARS). The basin demonstrated existence of a Petroleum System (Kiconco, 2005 and PEPD, 2012). Although ... -
Organochlorine pesticides in mothers' breast milk and risk assessment posed to nursing infants in Kanungu District and Kampala District
(Makerere University, 2019-10)This is the second study to report organochlorines (OCPs) in maternal breast milk in Uganda. The main aims of the present study were to determine concentrations of selected organochlorine pesticides in mothers’ breast milk ... -
On the classification of algebraic structures using quivers
(Makerere University, 2019-10-17)There are several ways used to classify algebraic structures, however in this project we classify path algebras of a connected quiver using Gabriel’s Theorem. We also show that the isomorphic classes of the indecomposable ... -
Pesticide residues in tomatoes and okra grown on the shores of Pece stream in Gulu Municipality, Northern Uganda
(2019-10-14)This study determined the levels of pesticide residues (cypermethrin, chlorpyrifos, aldrin, dieldrin, dicofol, α-endosulfan and β-endosulfan) in thirty vegetable samples (15 tomatoes and 15 okra) from the shores of Pece ... -
On Hulls of Semiprime Rings
(Makerere University, 2019-03-15)Suppose R is a unital ring with a ring of quotients. We construct an intermediate ring between R and the maximal right ring of quotients Q(R). The intermediate ring lies in a class of rings that generalizes the class of ... -
Delineation of petroleum plays in the Semliki Basin, Albertine Graben Western Uganda, from trap-type perspective
(Makerere University, 2019-10)Prospects evaluation in the Semliki basin demonstrated working petroleum system, but no viable targets have been discovered. This work was aimed to identify and group the prospective hydrocarbon resource areas of the basin ... -
Atmospheric concentration of selected trace gases over Uganda
(Makerere University, 2019)The atmospheric concentration of the trace gases of CO2, CH4, NO2 and SO2 over Uganda was obtained at the stations of Makerere, Mukono, Lira, Tororo and Kasese. Data used in this study was retrieved from the Ozone ... -
Effect of municipal effluent on the water quality of Pece Stream and on selected vegetables along its shoreline in Gulu Town, Northern Uganda
(2016-09-20)The restoration of peace in Northern Uganda has caused a rapid population growth in Gulu Municipality, which in turn has elevated anthropogenic pollution over the recent past. Pece stream being the only drainage system in ... -
Thermal performance of an oil-rock heat storage system
(Makerere University, 2018-09)Experiments to evaluate the thermal performance of an oil-rock thermal energy storage system by direct heating from the base of the storage tank are presented. The oil-rock TES system consisted of a combination of sunflower ... -
Quantifying the burden of foot and mouth disease in selected districts in Uganda
(2018-12)One cycle of foot and mouth disease is considered for a susceptible, infected and removed epidemiological model. Analysis of the basic properties of the SIR epidemic model with direct transmission of infection and numerical ... -
Organochlorine pesticides in honey and soils from areas surrounding an abandoned store at Masindi District, Western Uganda
(Makerere University, 2018-12-06)This study determined the concentrations of organochlorine pesticides (OCPs) in soil and honey from areas surrounding an abandoned store at the Masindi District Headquarters. The samples were extracted using solid-liquid ... -
Efficacy of selected chemical and biological binders in reducing aflatoxin concentrations in poultry feeds
(Makerere University, 2018-12-04)To support the massive increase in poultry production in Uganda, there is need to improve the quality of feed in terms of nutrient composition and absence of harmful and toxic materials. Feed can be contaminated by aflatoxins ... -
Fixation of carbon dioxide into epoxides to form cyclic carbonates using silicate based catalysts
(Makerere University, 2018-11)This study aimed at developing silicate based catalytic systems for the fixation of carbon dioxide (CO2) into epoxides to form cyclic carbonates. Catalytic activity of selected naturally occurring silicates including: ... -
Localization in different categories
(2018-11-30)Localization can be thought of as a systematic way of inverting morphisms in a category to construct a new one. This can be formulated accurately in terms of a universal property. In this study, we looked at localization ... -
A mathematical model for the transmission dynamics and optimal control strategy of Coffee Wilt disease
(2018-10-18)The main objective of this study was to formulate a mathematical model for the transmission dynamics and optimal control strategy of coffee wilt disease (CWD) in Uganda. A deterministic model for the transmission dynamics ...