University of Nairobi Institutional Repository: Recent submissions
Now showing items 58341-58360 of 116514
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Optimization Of X-ray Fluorescence Elemental Analysis: An Example From Kenya
(University of Nairobi, 1998-07)A systematic study and application of a radioisotope excited energy dispersive X-ray fluorescence analysis method to multi-elemental determination in Kenyan rock samples whose supporting matrices are of light elements is ... -
Juvenile-mature correlations in selected Douglas-fir [Pseudotsuga menziesii (Mirb.) Franco] provenances and progenies
(University of Nairobi, 1981)Growth and branch characteristics of thirteen year old Douglas-fir trees were analysed with the objectives of partitioning the variance into additive and non-additive, estimating heritabilities, and estimating juvenile-mature ... -
Effects Of Substituting Maize With Rice-milling By-products In Commercial Layer Chicken Diets
(2011)Inadequacy of high quality and reasonably priced poultry feeds constitute major challenges to the development of a vibrant poultry industry. Maize and its by-products are the main energy sources used in the manufacture ... -
Evaluation of lCT Skills Appropriateness: A Survey of Technical Staff at the Directorate of e-Government in Kenya
(University of Nairobi, 2010) -
Deposition and Characterization of CuAlxBx Se2 Thin Film Deposited by DC-RF Co-sputtering for PhotovoItaic Application
(2012)Solar cell has the potential of being the m am drive to economic prosperity as it is one of the mo-t promising sources of cheap, environmentally friendly and renewable energy. Crystalline silicon based technology currently ... -
Optical and Electrical Characterization of Cd:JxNi_:xS and Sb2S3 Thin FiIm s for Photov0Itaic Application s
(2012)The limited supply of fossil fuels has motivated the search for alternative sources of energy. Much Interest now focuses 011 the vast amount of radiation from the sun and thus devices that COnveJ1 light energy into ... -
Efficiency Enhancement in P3HT:PCB Blends using Squarylium III Dye"
(2012)Nano-size thin films comprising poly (3-hexylthiophene) (P3HTi and 3 fullerene derivative [6, 6] PhenylC,-butyric acid methyl ester (PCBl"l) incorporating squaryliurn dyes III (sq3) are reported. The materials prepared ... -
High Level Physics and Appropriate Solutions to Real Life Problems in Developing Countries
(2013-11)This paper presents the state of physics education and research at the University of Nairobi. The Department is the largest in Kenya with 32 academic staff and 15 technical staff. We offer three undergraduate programs: ... -
Optical Characterization of Compounds for Dye-Sensitized Solar Cell Applications
(28-04-14)The d\ e·~cn~ltized solar cell can provide an economically credible alternative in miugaring the challenges presented by the current convectional photovoltaic devices. Whereas the se m iconductor assume both the task of ... -
Effects of Target Composition on the Optical Constants of uC Sputtered ZnO:AI Thin Films
(2012)AI-doped lJlO thin films were deposited from lnO:AI ceramic and Zn.Al meial alloy targets, Deposition took place in Ar and Ar + O2 atmosphere for lnOAI and ZnAl targets: respectively, using DC magnetron sputtering. ... -
Optimization of Sn.Se, Deposited by Reactive Thermal Evaporation for Solar cell Application
(University of Nairobi, 2012) -
Projection for PV sizing for a stand-alone "all-direct current" telecommunication system using the mismatch factor algorithms
(University of Nairobi, 2012)Solar PV energy has been widely used for decade especially where connection to a national grid is seldom possible and other sources such as fossil fuel and others are either unavailable or uneconomical. Solar PV energy ... -
The post-mortem pathology of HIV-1-infected African children
(University of Nairobi, 2002)A retrospective review of autopsy findings and medical records in 33 HIV-infected children living in a Kenyan orphanage is described. Their ages ranged from 1 month to 18 years and median age at death was 71 months (range ... -
Knowledge Transfer in the Digital age: Possibilities and challenges
(University of Nairobi, 2013) -
Ch a r a c terization of SnxSeylSn02:Co P-N Junction Deposited by Spray Pyrolysis for Photovoltaic Application
(2014)SC-,1ICil f('r semiconducting materials for photovoltaic application has attracted a lot of attention rccern l, This research will involve characterization of Sn.Se.: S1102-Co P-N as a solar cell material. SnSe is Ci ... -
Fabrication and Cha r actcrization of Aluminum and Gallium Morroand Co-doped Zinc Oxide Thin Films by Radio Frequency Sputtering For photovoltaic Applications
(28-04-14)There is need to provide low resistivity ZnO transparent conducting thin films by radio frequency (rf) magnetron spunering technique for commercial photovoltaic applications. Rf magnetron spunering technique has comparative ... -
Effects Of Enzymes And Probiotics On Growth Performance And Gastrointestinal Morphology In Broiler Chicken
(2011)A study was done to investigate the effect of yeast culture (Diamond V XPC) and alloenzyme (Allzyme SSF) on the performance and gut morphology in broiler chicken. One hundred and sixty broiler chicks were fed on diets ... -
RESEARCH ACTIVITIES IN PHYSICS IN EASTERN AFRICA
(2014-04-28)To advance economically and technologically, many African nations need to simultaneously develop a culture of physics and a supporting infrastructure. University's research activities are of vital importance to carrying ... -
Performance of Ti02/In(OH)xSylPb(OH)xSy Composite eta Solar Cell Fa bricated from Nitrogen Doped Ti02 Thin Film Window
(28-04-14)TiO~ th in lilills were doped with nitrogen (N2) gas and the presence of nitrogen atoms was confirmed in the films hv Energy dispersive x-ray (EDX) spectrum analysis. Undoped TiO: thin films had an energy band gap of ...
