Faculty of Science: Recent submissions
Now showing items 181-200 of 337
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Wavelet sets in ℝ n
(Council for innovative research, 2015-06-18)A congruency theorem is proven for an ordered pair of groups of homeomorphisms of a metric space satisfying an abstract dilation-translation relationship. A corollary is the existence of wavelet sets, and hence of ... -
Characterization of greywater from urban and peri-urban areas of Nakuru municipality, Kenya
(Loughborough University, 2009)Kenya faces serious challenges regarding water and sanitation services. Despite many years of government investment, existing facilities continue to deteriorate and have also failed to meet the demand of increasing ... -
Simulation of catchment hydrologic response under changing land use: case of upper Molo river catchment, Kenya
(2014)The urban and agricultural developments have led to changes in catchment hydrologic response. To clearly understand the effect of land use change on catchment hydrologic response, a study was carried out in the Upper Molo ... -
Analysis of manual and centralised supervisory control operations to improve level of service: a case study of pyramid hill no 1 channel, Victoria, Australia
(Kluwer Academic Publishers, 2001-02)The current challenge facing irrigation inAustralia is tofind ways to improve the operationalperformance of existing systems rather thanconstructing new ones. Unsteady flowsimulation models are often used as keytools to ... -
The ROSA project–a new approach to sustainable sanitation in Eastern African cities
(2008-09)The ROSA project promotes resources-oriented sanitation concepts as a route to sustainable and ecologically sound sanitation. These concepts shall be applied in four cities in Eastern Africa, namely Arba Minch (Ethiopia), ... -
Classification of catchment risk areas using spatially distributed event-based soil erosion: a case of upper Njoro river catchment, Kenya
(WIT Press, 2008-12-19)Human-induced soil erosion and drastic change in land use practices have adversely infl uenced the land degradation and surface runoff response in upper Njoro River catchment. The drainage area is approximately 127 km2. Due ... -
A review for hydraulic analysis of irrigation canals using HEC-RAS model: a case study of Mwea irrigation scheme, Kenya
(Science Publishing Group, 2014-12-19)Hydraulic simulation models could be suitable tools for understanding the hydraulic characteristics of irrigation systems. In this study HEC-RAS model will be tested in terms of error estimation and used to determine canal ... -
Analysis of drought effect on annual stream flows of river Malewa in the lake Naivasha basin, Kenya
(Radiance Research Academy, 2014-09-15)The main parameters of drought phenomenon are the longest duration and largest severity for a desired return period. These parameters form the basis for designing water storage structures to cope with drought effects. In ... -
Hydrological drought frequency estimation using stream flow drought index and modified gumbel method in upper Tana river basin
(Radiance Research Academy, 2015-11-15)Objective: To estimate the hydrological drought frequency for upper Tana River basin in Kenya using absolute Stream flow Drought Index (SDI) and modified Gumbel technique. The frequency of drought event of a defined ... -
Predictings sediment loading into Masinga reservoir and its storage capacity reduction
(2005-09-07)It is estimated that the annual loss in storage capacity of the world’s reservoirs due to sedimentation is around 0.5 – 1.0%. For many reservoirs, however, annual depletion rates are much higher and can go up to 4% or ... -
Norms, attitudes and gender perspectives in ecological sanitation
(Loughborough University, 2009)In Kenya, the urban poor are residing in the Peri urban areas of Nakuru Municipality with inadequate sanitation facilities. This study investigated attitudes towards urine diverting toilets to popularize their use as ... -
Detection of trends in extreme streamflow due to climate variability in the lake Naivasha basin, Kenya
(2014-11-17)Variability of streamflow has far-reaching impacts especially in developing countries. This is aggravated by climate change which has adversely affected the water resources and food security. This paper presents the ... -
Drought forecasting using indices and artificial neural networks for upper Tana river basin, Kenya-a review concept
(OMICS Publishing Group, 2014-01-01)Due to increased impact of drought on water availability at different scales there is need to understand droughts especially in upper Tana River basin which is a critical and largest water system in Kenya. There is need ... -
Recommendations for dealing with waste contaminated with ebola virus: a hazard analysis of critical control points approach
(2016)Objective To assess, within communities experiencing Ebola virus outbreaks, the risks associated with the disposal of human waste and to generate recommendations for mitigating such risks. Methods A team with expertise ... -
Estimating spatial sediment delivery ratio on a large rural catchment
(2006-05-20)Soil erosion and sediment yield from catchments are key limitations to achieving sustainable land use and maintaining water quality in streams, lakes and other water bodies. Controlling sediment loading requires the ... -
Modelling soil erosion and sediment yield at a catchment scale: the case of Masinga catchment, Kenya
(John Wiley & Sons, Ltd., 2006-08-07)Development of improved soil erosion and sediment yield prediction technology is required to provide catchment stakeholders with the tools they need to evaluate the impact of various management strategies on soil loss and ... -
Perfect repetition codes of ideals of the polynomial ring 2 [ ] ( 1) n n F x mod x − for error control in computer applicatons
(2016)The study of perfect codes has attracted a lot of interest among researchers in coding theory in view of the fact that many authors have indicated that this type of codes is rare. These codes are considered the best for ... -
Unconditional ideals in Banach spaces
(Scientific advances, 2012-07-14)Let wL ′ denote the assignment which associates with each pair of Banach spaces X , Y, the vector space L ( ) X Y w , ′ and K(X, Y ) be the space of all compact linear operators from X to Y. Let T L ( ) X Y w , ′ ∈ and ... -
Characterization of codes of ideals of the polynomial ring f30 2 [x] mod ô€€€ x30 ô€€€ 1 for error control in computer applicatons
(2016-06-30)The study of ideals in algebraic number system has contributed immensely in preserving the notion of unique factorization in rings of algebraic integers and in proving Fermat's last Theorem. Recent research has revealed ... -
Spaces of compact operators and their dual spaces
(Business mathematics and informatics, 2002)Theω′-topology on the spaceL(X, Y) of bounded linear operators from the Banach spaceX into the Banach spaceY is discussed in [10]. Let ℒw' (X, Y) denote the space of allT∈L(X, Y) for which there exists a sequence of compact ...