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 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 Automatic control systems penneate life in all advanced societies today. Such systems act as catalysts in promoting progress and development. They are integral components of any industrial society and are necessary for the production of standardized and quality goods. Suitable signal plans at each road intersections can be used to solve the problem of traffic :flow. These plans could be fixed-time, time varying, or traffic actuated. Traffic control systems have evolved during the 20...
ABSTRACT The erratic pattern of rainfall over the years coupled with increasing population has left no option but to cultivate more farmlands through irrigation to meet food demand. Irrigated Agriculture as essential as it is if not done with care through good practices and use of quality water can lead to soil salinization and ecological unsustainability. In Kenya a lot of irrigated lands have been abandoned after few years of cultivation due to salinization. This study was carried out to a...
ABSTRACT Cassava (Manihot esculenta, Crantz) is an important perennial tropical crop for millions of people around the world particularly in Sub-Saharan Africa. It is preferred due to its agronomical attributes such as ability to grow in poor soils and drought resistance. Cassava storage roots are also a good source of starch. In addition, cassava leaves and tender shoots are eaten as vegetables in many parts of Africa, Kenya included and are an excellent source of vitamins, minerals and pro...