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Now showing items 11-20 of 166
A critical assessment of Odera Oruka’s Theory of Punishment
(2012-12)
This paper is a critical examination of Odera Oruka’s theory of punishment in his
Punishment and Terrorism in Africa. It argues that although Oruka clearly highlights
the weaknesses of the Retributionist and Utilitarian ...
Automatic classification of plasmodium parasites using stained RGB images
(2012)
In this work, an accurate, speedy and affordable model
of malaria diagnosis using stained thin blood smear
images as developed. The method makes use of the
morphological, colour and texture features of
plasmodium ...
Developments in Medical Elementology and Spectral Diagnostics of Disease Via Chemometrics and Machine Learning Assisted Trace Spectroanalytics and Imaging Towards Applications in Nanomedicine
(2012)
The chemical composition of body fluids and tissue are correlated to the state of health. The
concentration level and speciation alterations, as well as correlations of trace chemicals in body tissues
and fluids can thus ...
Application of Multi-spectral Satellite Imagery in Monitoring of Aquatic Vegetation and Water Quality Parameters in Large Inland Waters
(2012)
Following the great potential of optical remote sensing
and its increased application in quality assessment of
inland waters, we have developed time dependent
vegetation abundance prediction models based on its
statistical ...
Burrkitt’s lymphoma homing phenomenon
(University of Nairobi, 2012)
Cwru 2498: Implications of oral chemotherapy in east africa;case collaboration in aids malignancy
(University of Nairobi, 2012)
HIV Associated Non-Hodgkin's Lymphomas Primary Anatomical Sites Predilections
(University of Nairobi, 2012)
The role of Aquaculture enterpreneurship in youth economic empowerment in Sagana fisheries, Kirinyaga county, Kenya
(University of Nairobi, 2012)
Since independence, Kenya has been grappling with an increasing population which is not in
tandem with the rate of job creation hence slow economic growth and development. The Youth
form the largest segment of the ...
A model based on reaction kinetics and elemental diffusion is proposed to account for the presence of double inflection in the hardness profiles of the heat-affected zone (HAZ) in weldments of AI-Li-X alloys tested without postweld heat treatment (PWHT). Such profiles are particularly evident when 1 ) the base metal is in the peak-aged (T8 or T6) temper condition prior to welding; 2) the welding process is a high-heat input process, i.e., gas tungsten arc (GTA), gas metal arc (GMA) or plasma arc (PA) welding; and 3) a filler alloy deficient in lithium (i.e., AA 2319)is used. In the first part of this paper, the theoretical mechanisms are presented. It is proposed that the double inflection appears due to complete or partial reversion of the semi-coherent, plate-like precipitates (i.e., 0% T 1 or S'); coarsening of the platelike precipitates at constant volume fraction; precipitation of ~5' as a result of natural aging; and diffusion of lithium from the HAZ into the weld pool due to the concentration gradient between the weld pool and the base metal. In the second part (to be published in next month's Welding Journal), experimental validation of the model is provided using weldments of the AI-Li-Cu Alloy 2095.
(2012)
Pt-based alloys for high-temperature applications in aggressive environments have been under
development for over 10 years, and are targeted to be used as either as bulk, or as coatings.
The alloys comprise Pt, Al, Cr, ...
Digital divide; the glaring reality
(2012)
The power to access information and technology is important in daily global
operations in different aspects of the society,
be it economical, political or
social.
Each and every country has different levels
of information ...