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Evaluation of the factors controlling concentration of Non-condensable gases and their possible impact on the performance of geothermal systems: case study of Olkaria wells in the Kenyan Rift Valley
(University of Nairobi, 2016)
The Olkaria geothermal field is located in the Kenyan Rift valley, about 120 km from Nairobi. Development of geothermal resources in the Olkaria area, a high temperature field, started in the early 1950s. In the subsequent ...
Analysis of the levels of selected heavy metals in the vicinity of a lead batteries Recycler plant in Athi-River, Kenya
(University of Nairobi, 2016)
The levels of heavy metals in the environment have been increasing in the recent past as a result of human activities. Since toxicity of heavy metals is widely known, their speciation is increasingly attracting attention. ...
Co-occurrence and diversity of soil trichoderma and fusarium species from different land use intensities in Machakos county, Kenya
(University of Nairobi, 2016)
Soil fungi are important components of the soil biota and their diversity is a good indicator of soil
health. Soil fungi respond differently to land use practices and to their relative populations. The cooccurrence
and ...
Chemical composition and antibacterial activity of essential oils of tagetes minuta (asteraceae) against selected plant pathogenic bacteria
(University of Nairobi, 2016)
The objective of this study was to determine the chemical composition and antibacterial activity of essential oils (EOs) of Tagetes minuta against three phytopathogenic bacteria Pseudomonas savastanoi pv. phaseolicola, ...
Enhancement of colonisation of soybean roots by arbuscular mycorrhizal fungi using vermicompost and biochar
(University of Nairobi, 2016)
Pollution and contamination of soil is one of the major concerns in the world today. Excessive use of synthetic fertilisers has caused tremendous harm to the environment and the human population indirectly. Chemical residues ...
Optimization of essential oil extraction from eucalyptus grandis leaves by clevenger distillation
(University of Nairobi, 2016)
Abstract
:
Recent statistics have shown a rise in the margin of consumption and utilization of essential oils, over the past years this has
been marked by a divergence in the dependence of allophaticallopathic ...
Inter Annual Variability of Onset and Cessation of the Long Rains in Kenya
(University of Nairobi, 2016)
This study examined the spatial and temporal variability of the onset and cessation of long rains (MAM). The daily rainfall data used in the study was obtained from the Kenya Meteorological Department (KMD. Both graphical ...
On the existence of a non-relativistic hermitian time operator
(2016)
The existence of a hermitian time operator is proposed in the framework of non-relativistic quantum mechanics.The Heisenberg equation of motion is shown to yield constant rate of flow of time.It is shown to yield results ...
Interactions among vegetable-infesting aphids, the fungal pathogen Metarhizium anisopliae (Ascomycota: Hypocreales) and the predatory coccinellid Cheilomenes lunata (Coleoptera: Coccinellidae)
(2016)
Entomopathogenic fungi are among biocontrol agents being considered for the control of aphids on a variety of crops. Predatory coccinellids, although generalist, are also among important natural enemies that must be conserved ...
Predicting E-Procurement Utilization in Independent Commissions in Kenya
(2016)
E-procurement has recently been introduced in the Kenyan
public sector due to the many practical advantages it brings.
Usage of the system is still at a very nascent stage. This paper
sought to predict e-procurement ...