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Secure signal and space alamouti scheme
(University of Nairobi, 2016)
A method is proposed that secures the conventional Alamouti space-time block code against an eavesdropper by use of both signal and space rotations. Signal rotation is realized by applying a random rotation angle to the ...
Environmental implications of high metal content in soils of a titanium mining zone in Kenya.
(University of Nairobi, 2016)
Mining activities contribute to an increase of specific metal contaminants in soils. This may adversely affect plant life and consequently impact on animal and human health. The objective of this study was to obtain the ...
Identification of groundwater potential zones using remote sensing and GIS in lake Chala watershed, Kenya
(University of Nairobi, 2013)
Groundwater is a natural resource of the earth that sustains and supports domestic, agricultural and industrial activities. It is distributed fairly and evenly throughout the world and over half of the world’s population ...
Optimization of the Angle of Frog in Mouldboard Tillage Operations in Sandy Clay Soil
(2015)
This paper investigated the effect of three independent variables including: tillage speed (ranges of below 2.5 m/s and between 2.5 m/s and 5 m/s), tillage depth (range of 10 cm from 0 cm to 30 cm) and frog angle (30° 40°, ...
A hardware based model for an asset monitoring and tracking system: Case of laptops
(2015)
Corporate mobility initiatives and the anytime, anywhere information workers is on the rise. This is mostly fuelled by availability of affordable and more powerful mobile computing devices, especially laptops and tablets. ...
Solution to Economic Load Dispatch using Particle Swarm Optimization
(Department of Electrical and Information Engineering, School of Engineering, University of Nairobi, Kenya, 2014)
-This paper proposes to determine the feasible
optimal solution of the economic load dispatch power systems
problem using Particle Swarm Optimization (PSO) considering
various generator constraints. The objective of the ...
Welding Quality in Kenya: Application of Radiography
(University of Narobi, 2014)
In Kenya, welding services are extensively employed in both the formal and informal sectors. The needs continue to
increase with increasing population, infrastructure and vehicle fleet, and economic development. Welding ...
Torque wrench calibration and uncertainty of measurement
(2014)
Torque wrenches (TW) are widely used in the automotive, aviation and building industry. TW are used to control torque in assembly and fastening operations. Regular calibration of torque tools guarantees traceability to ...
Structural performance evaluation of landolphia buchananii concrete beams
(2014-10)
The study sought to evaluate the performance of Landolphia buchananii concrete beams to establish the potential of
Landolphia buchananii as structural reinforcement of concrete in beams. Tensile strength test on ...