ABSTRACT Following The landing of the fiber optic cable in East Africa and its going live businesses, institutions and organizations have been on rush to improve their services and maximize their profits. This has made e-commerce and e-learning a reality in east Africa. Due to this progress there has been an enormous competition in the use of internet in e business and e-learning and whoever makes the best use of it emerges as a survivor in the competitive sector. This proposal therefore pr...
ABSTRACT This Research examines the heavy metal distribution of a dumpsite in Uvwie Local Government Area along Warri Port Express-Way of Delta State Nigeria. A total of eight (8) soil samples and (2)-plant sample were collected from the study area and also control site using a systematic sampling technique. Samples were taken to the lab and analyzed to determine the physicochemical parameters and heavy metal content. The dumpsite is contaminated with heavy metals such as iron (ranging from...
ABSTRACT It is widely agreed among economists, policy makers and central bankers that all macroeconomic policies seek to attain high levels of economic growth coupled with very low rates of inflation. High inflation rates have resulted to a number of adverse effects on the economic growth of many countries over time. But how low should the inflation rate be so as not to affect economic growth negatively? Economic policymakers in Kenya have been working towards the attainment of a 5 percent r...
ABSTRACT The concept of cycle index was first discovered by Howard Redfield in 1927. The cycle index formulas of various group actions have been computed since then by various authors. The formulas have been used to count graphs in mathematics and chemical compounds in chemistry. Therefore cycle index is a very useful tool in enumeration. It is widely applied in other fields of study like biology and jewelry industry. The cycle index of the symmetric group acting on ordered pairs, triples an...
Groundwater contamination occurs when man-made products such as gasoline, oil, road salts and chemicals get into the groundwater and cause it to become unsafe and unfit for human use. Drinking contaminated groundwater can have serious health effects. Diseases such as hepatitis and dysentery may be caused by contamination from septic tank waste. Poisoning may be caused by toxins that have leached into well water supplies. Wildlife can also be harmed by contaminated groundwater. Other long...
ABSTRACT Magnetohydrodynamic boundary layer flow involving a fluid of varying viscosity subject to thermal radiation and Newtonian heating has various applications in industry and engineering some of the applications include designing of cooling systems used in electronic devices, cooling of nuclear reactors, harvesting of solar energy, thermal insulation, heat exchangers and in geothermal reservoirs. Heat transfer by thermal radiation is of significance to engineering processes that occurs ...
ABSTRACT Turbulent flow is a type of fluid flow in which the fluid undergoes irregular fluctuations. The velocity of the fluid at a point is continuously undergoing changes in both magnitude and direction. Turbulent natural convection has been studied both numerically and theoretically. It plays an important role in the field of heat transfer and buildings environment. A numerical study was performed on a rectangular enclosure with varying Rayleigh numbers to determine velocity, temperature ...
ABSTRACT The Kenya Vision 2030 aims at achieving a 10 percent per annum growth rate in the economy. Investments have been identified as a major channel through which this objective can be met. The government has undertaken various public investments to fuel economic growth. However, for this to be even more effective, private investments have to be taken into consideration. The government has taken various measures such as relying more on external debt to avoid crowding out private investmen...
Kajiado town, the County headquarters for Kajiado County which is classified as semi-arid area, lacks adequate water supply systems. The town had a projected population of 16,003 in 2013 (KNBS, 2010) but no functional municipal water supply system. There is no permanent river near the town and the town has a formation with poor aquifer such that even bore holes have low water yields. Water is sold at an exorbitant price given that a twenty (20) litre jerry can cost on average Kshs 10 whi...
Studies have been done on the aspect ratio effect on natural convection turbulence using standard k-ε model but further studies showed that k-ω SST model performed better than both k-ε and k-ω model in the whole enclosure. Thus, there was need to do a numerical study on the natural convection fluid flow in a rectangular enclosure full of air using SST k-ω model. The left vertical wall of the enclosure was maintained at a steady high temperature Th of 323K while the right wall at a s...
ABSTRACT In this study, the impact of a transverse magnetic field on blood flowing through an axisymmetric curved shaped stenotic artery has been investigated. This research is of importance in the field of medicine. There is an application in magnetic hyperthermia which is used to shrink tumors in the treatment of cancer. In addition to this, the externally applied magnetic field is also used to reduce/diminish blood flow in the region of stenosis and hence it is used in the treatment of hy...
ABSTRACT Heat transfer plays a great role in engineering processes, blowing of fluids is used in designing thrusters and prevention of corrosion. Suction is used in film cooling and coating of wires in chemical engineering. A lot of research has based on thermal reduction in processing streams and forgetting the machine efficiency. The study theoretically investigates the effect of hall current on a steady magneto convection and radiative heat transfer over a porous plate. This work is motiv...
ABSTRACT The effect of inflation on the stock market has attracted many studies. Fisher theory postulates that the real rate of returns on common stocks do not depend on inflation, indicating that stocks should be independent of inflation. The studies have attempted to investigate how inflation affects the stock market and the studies have mainly used the aggregate stock market index. However, the use of aggregate indices may mislead on the actual performance of sector-specific indices. The ...
ABSTRACT Global crop and energy production are fast dwindling inversely to population growth. Common bean (Phaseolus vulgaris L.) yield has reduced worldwide due to soil infertility which can be reversed through application of chemical fertilizers. The chemical fertilizers used to ameliorate nitrogen, phoshorus and potassium are expensive and cause both deleterious physico‒chemical modification of soil and water mass eutrophication. The common bean has ability to fix atmospheric nitrogen s...
ABSTRACT Diarrhoeal diseases in Kenya are among the five main causes of mortality in children younger than five years. Bacterial diarrhoea has been reported to account for up to 30 % of all cases of infantile diarrhoea. Among children of age five years and below, diarrhoeagenic E. coli (DEC) such as enterotoxigenic E. coli (ETEC), enteropathogenic E. coli (EPEC), enteroaggregative E. coli (EAEC) are the most important enteric pathogens and are responsible for 30 to 40 % of all the diarrhoeal...