Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2869-2888 of 4283
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Optimization of Narrow Band-Gap Propylenedioxythiophene:Cyanovinylene Copolymers for Optoelectronic Applications
(Department of Chemistry, University of Nairobi, 2006)Four analogues of the narrow band gap poly(3,4-propylenedioxythiophenedialkyl)cyano-p-phenylenevinylene (PProDOT−R2:CNPPV) polymer family have been designed with the goal of improving the film forming ability and utility ... -
Optimization of parameters for study of heavy metals in biological samples
(University of NairobiCollege of biological and physical science, 1996)In this work parameters such as AAS/CVAAS delay time, pH, digestion matrix, mercury reducing agents, sensitivity complexing time for XRF analysis and digestion temperature have been considered. The results demonstrates ... -
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 ... -
Optimization of X-ray Fluorescence Elemented analysis.an example from Kenya
(Department of Physics, University of Nairobi., 1998)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 ... -
Optimizing Neural Network for TV Idle Channel Prediction in Cognitive Radio Using Particle Swarm Optimization
(University of NairobiCollege of biological and physical science, 2013) -
Optimum two stage group-screening designs
(School of Mathematics, 1984)In this paper, emphasis has been given to both the expected number of runs and the expected number of incorrect decisions and two stage group-screening designs have been obtained which minimise one fixing the other or ... -
Optimum two stage group-screening with unequal group sizes and with errors in decisions
(School of Mathematics, 1987)In this paper, the formula for the expected number of incorrect decisions has been obtained. It is assumed that the factors are defective with different a-priori probabilities. Group-screening designs have been described ... -
Optoelectronic Properties of F-co-doped PTO Thin Films Deposited by Spray Pyrolysis
(University of Nairobi, 2013)F-co-doped Palladium Tin Oxide (PTO) thin films were pyrolytically deposited on glass substrate at 4500 C using an alcoholic precursor solution consisting of Tin (IV) Chloride (SnCl4.5H2O), Palladium Chloride (PdCl2) ... -
Optoelectronic property refinement of FASnI3 films for photovoltaic application
(University of Nairobi, 2021)Tin (Sn) is a promising substitute for lead (Pb) in organic–inorganic hybrid halide perovskite-photovoltaic devices, but it is prone to delivering low power conversion efficiencies (PCEs) due to the poor quality of ... -
Organic acid production and digesta movement in the gastrointestinal tract of the baboon and sykes monkey
(University of Nairobi, 1980)1. Studies compare the sites of organic acid production and patterns of digesta movement in herbivorous and omnivorous sub-human primates. The results of this study indicate that digestive functions of the herbivorous Sykes ... -
Organic binders to enhance fuel efficiency of charcoal (Jikos) and in water filters
(University of Nairobi, 2013-12)This work presents experimental and theoretical study of the effect of a plant bidder (corchirus olitorius) on the thermal shock resistance and thermal con: of kaolinite-based refractories. Shock-induced crack growth, ... -
Organic content and X-ray density of lacustrine sediments from Hausberg Tarn, Mount Kenya
(University of Nairobi.Department of Geology, University of Nairobi, Nairobi, Kenya, 2004)The variations in the organic content of a sediment core from a pro-glacial lake, Hausberg Tarn, located on the NW slope of Mount Kenya has been determined. Two types of methods for determining organic content were compared ... -
Organizational cultural dynamics and information and communication technology adaptation in a developing country: The case of the Kenyan joint university admission system
(School of Computing and Informatics, University of NairobiICT Centre, University of Nairobi,, 2009) -
Organochlorine pesticide residue levels in soil from the Nyando River catchment, Kenya
(University of Nairobi, 2015)Soil samples were collected from six locations representative of the Nyando River catchment area of the Lake Victoria over a period of two years. Sampling was done four times in the year in February, May, September and ... -
Organochlorine Pesticides Residues In Water And Sediment From Rusinga Island, Lake Victoria, Kenya
(University of Nairobi, 2016)This study was carried out to investigate the organochlorine pesticide residue level in representative sites in Rusinga Island of Lake Victoria, Kenya. Sediment and water samples from five sites along the shores of Rusinga ... -
Organochlorine Pesticides: Curse or blessing of the tropical environment
(Department of Chemistry, 1996) -
Origin and the Distribution of the Elements
(Department of Geology, 1979) -
OSI-930 analogues as novel reversal agents for ABCG2-mediated multidrug resistance
(College of Biological and Physical Sciences ,Department of physics, 2012)OSI-930, a dual c-Kit and KDR tyrosine kinase inhibitor, is reported to have undergone a Phase I dose escalation study in patients with advanced solid tumors. A series of fifteen pyridyl and phenyl analogues of OSI-930 ... -
Otorhinolaryngology, head and neck surgery in Kenya--consequences of demographic parameters
(University of Nairobi.Department of Surgery, 2002-05)BACKGROUND: In the time of evidence based medicine the analysis of the influence of demographic parameters and different environmental factors on the treatment concepts in a country is often neglected. This is also true ... -
Our Freshwater Under Threat–Vulnerability of Water Resources to Environmental Change in Africa
(2013-06-19)No abstract
