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Investigation of the Effect of Film Thickness on the Optical Properties of Amorphous Se85-xTe15Sbx Thin Films
(Africa Journal of Physical Sciences, 2014)
Amorphous thin films of Se85-xTe15Sbx (x = 0.0, 0.5, 2.5, and 5.0 at. %) deposited by flash evaporation technique, have been investigated in the wavelength range of 500nm-3000nm. It is found that the effect of increasing ...
Quiet Time Geomagnetic Field Variations in the Equatorial East African Region During the Inclining Phase of Solar Cycle 24
(Science Publishing Group, 2014)
In the present paper, geomagnetic field data obtained from magnetometer measurements at two ground based
stations have been used to study solar activity dependence of the solar quiet variations. The study has focused on ...
Mathematical model of variable speed pitch regulated turbine in a wind energy conversion system
(2014)
Pitch control of wind turbine in a wind energy conversion system involves the change of the rotor blade pitch angle along the rotor axis. Most compa-nies are faced with the challenge of maintaining a steady and optimal ...
Effect of Ga Incorporation and Film Thickness on the Optical Properties of as-Deposited Amorphous GaxSel-x Thin Films
(University if Nairobi Research archive, 2014)
Flash evaporated amorphous GaxSe1-x (x = 0, 1, 2, 3, and 4 atomic %) on glass substrates have been
investigated within a 500nm-1500nm spectral range. Film thicknesses explored were ; 200±10nm, 265±10nm,
330±10nm, and ...
Complex Spacetime Frame: Four-Vector Identities and Tensors
(Scientific Research Publishing, 2014)
This paper provides derivation of some basic identities for complex four-component vectors defined in a complex four-dimensional spacetime frame specified by an imaginary temporal axis.
The resulting four-vector identities ...
The benefits and challenges emanating from community policing in Kenya: A Criminological Perspective
(International Journal of Innovation and Scientific Research, 2014)
Community policing is an integral component in ensuring that there is no insecurity in the community. More so,
the Kenyan government in the Kibaki regime introduced the concept of community policing which was seen as ...
Optical properties and Raman studies of amorphous Se-Bi thin films
(The African Review of Physics, 2014)
Flash evaporated amorphous Se Bi
(x = 0, 1, 2, 3, and 4 at. %) thin films of 350 ± 10 thickness have been
investigated in the wavelength range of 200nm − 3000nm. It is found that the effect of increasing bismuth ...
The Question of Elitism, Medium and Audience in African Literature: Examples from Kiswahili Short Story
(Academia.edu, 2014)
Since the Makerere Conference of 1962, the question of what is ‘African Literature’ has
remained unresolved. To a large extent a great number of scholars led by Ngugi reduced the
whole question to that of language. This ...
A study of the Equatorial Ionosphere over Nairobi During selected magnetically disturbed and quiet times for the year 2009 Using co-located instruments
(ARC, 2014)
Investigation of the behavior of the Equatorial Ionosphere over Nairobi-Kenya within the East
Africa region is done using co-located instruments, that is, SCINDA-GPS system and a Magnetometer (
MAGDAS). This was done for ...
A Critical Overview of the Kenyan Prisons System: Understanding the Challenges of Correctional Practice
(International Journal of Innovation and Scientific Research, 2014)
Kenya has been widely criticized for its on-going abuse of human rights and corruption in government
administration. Moreover, the prison system in Kenya has been termed to be dilapidated since they were adopted from ...