Browsing CW-School of Pure and Applied Sciences by Title
Now showing items 1-20 of 53
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Analysis of Optimuzed Deposition Temperature of ZnO:Al Thin Film on SnSe ZnO:Al P-N Juction Solar Cell
(2014)Solar energy has revolutionized the energy sector in the entire world by offering affordable, abundant and safe power source to the growing demands. The technology in solar cell production has advanced considerably in ... -
Animal feed suppliment from avocado residue and other locally available materials
(Kenyatta University, 2009)Kenya's population has been on the increase, and more than 15 million people are poor and live in rural Kenya. Of these, 70% are women, who are particularly vulnerable because they do not have equal access to social ... -
Application of LBIC measurements for characterisation of triple junction solar cells
(Elsevier, 2014-04-15)In this study the Light Beam Induced Current (LBIC) imaging technique was used to characterise InGaP/InGaAs/Ge triple junction solar cells. The study focused on the use of monochromatic and solar light as beam probes to ... -
Banana Distribution and their Seed Systems in Central and Eastern Kenya.
(African Crop Science Society, 2011)Bananas (Musa spp.) serve as food, income resource and animal feed in addition to other environmental benefits. In Kenya, the crop is mainly grown and managed by smallholder farmers. Over the last two decades, banana ... -
Characterization of a low concentrator photovoltaics module
(Elsevier, 2012-05)Low concentration photovoltaic (LCPV) systems have the potential to reduce the cost per kWh of electricity compared to conventional flat-plate photovoltaics (PV) by up to 50%. The cost-savings are realised by replacing ... -
Characterization of SnxSeylSn02: Co PN Junction Deposited by Spray Pyrolysis for Photovoltaic Application
(2014)This research will involve characterization of Sn.Se.: S1102-Co P-N as a solar cell material. SnSe is Ci p- type semiconductor with a direct band gap and high absorption in the visible region spectrum Cobalt doped rin oxide ... -
Characterization of TiO2 based dye-sensitized Solar Cell prepared by screen printing method
(2014)The dye-sensitized solar cells can provide an economically credible alternative in mitigating the challenges presented by the current convectional photovoltaic devices. Whereas the semiconductor assume both the task of ... -
Comparative determination of heavy metals bioaccumulation in bamboo as a phytoremediative process to polluted riverine wetlands
(Kenyatta University, 2009)Nairobi's unplanned settlements have resulted into open drained domestic and industrial waste into tributaries that join the larger Nairobi River at different stages of its development. Polluted water, to is either ... -
Conducting polyamic acid membranes for sensing and site-directed immobilization of proteins
(2013)Poly (amic) acid (PAA) is a functionalized conducting polymer substrate that provides electrochemical detection control of biospecific binding. In this work, we report a biosensor platform based on the PAA for oriented ... -
Current State of Handling, Processing and Quality of Omena (Rastrionebola argentea) in Mfangano and Rusinga Islands, Kenya
(2010-12)The livelihood of many Small Scale Fishers in Lake Victoria is based on the Omena Rastrionebola argentea fishery. The processing and trading in Omena in Kenya is dominated by women (80%) who derive their livelihood from ... -
Determination of insecticidal activity of Kenyan Bt isolates against the spotted stem borer, chilo partellus
(2010)The delta – endotoxin crystals containing insecticidal Cryproteins were isolated from 20 unidentified local Bacillus thuringiensis Berliner (Bt)isolates and a reference isolate Bt aizawai(Bta) using froth floatation and ... -
Ecological management of cereal stem borers in Ethiopia. Integrated Approaches to Higher Maize Productivity in the New Millennium.
(2002)Three lepidopterous stem borers were reported on maize in Ethiopia. Although complete crop loss is evident in some areas, the average yield loss of maize caused by cereal stem borers in Ethiopia can be estimated between ... -
Effect of 2, 4-d levels on callus induction of leaf and stem explants of 5 local farmer-preferred sweet potato varieties in Kenya
(2010)Five local and popular sweet potato (Ipomoea batatas(Lam.) varieties were selected from the major sweet potato growing areas, based on farmer-preferences and desirable characteristics. Both leaf and stem explants were ... -
Effect of bacillus thuringiensis (bt)–cotton protein endotoxins (cryiac and cry2ab2) on below ground fauna diversity with reference to entomopathogenic nematodes
(2010)This study was conducted with the aim of determining the impact of genetically modified (GM) cotton on the diversity of below ground fauna. The entomopathogenic nematode, Steinernema karii infectivity to the larvae of the ... -
Effect of larval food plants and seasons on the quality of the African wild silkmoth, gonometa postica walker (lepidoptera: lasiocampidae) cocoons
(Kenyatta University, 2009)Wild silkmoth farming offers an economic incentive for forest-adjacent communities to fully participate in forest conservation initiatives. Gonometa postica Walker is known to produce high-quality silk. It is being ... -
Effect of Sn Doping on the Electrical Properties of as Prepared and annealed ZnO thin films Prepared by Reactive Evaporation
(2014)Layers of transparent and conductive Sn-doped Zinc oxide (lnO) have been prepared by reacti. e evaporation on glass substrates. The deposition has been done at various doping levels ranging from J % to 8%. Annealing of ... -
Efficacy of transgenic kernels harbouring the cry3a gene from bacillus thuringiensis in the control of the larger grain borer and maize weevil
(2012)Insect bioassays were conducted to evaluate the efficacy of maize seed kernels expressing protein of aδ-endotoxin gene of Bacillus thuringiensis tenebrionis Cry3A against economically important coleopteran pests in stored ...
