Browsing School of Biological and Physical Science by Title
Now showing items 552-571 of 925
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MATHEMATICAL INVESTIGATION ON THE EFFECT OF NUMBER OF BRANCHES ON WATER HAMMER
(Pushpa Publishing House, 2013-10-01)This paper looks at water hammer with an emphasis on the number of branches. The mathematics of water hammer are described in a transient condition. This includes the momentum and continuity equations for conduits. A ... -
Mathematical model of pneumonia and HIV/AIDS coinfection in the presence of protection
(2015)In this paper, a deterministic co-infection model incorporating protection from infection for both pneumonia infection and HIV/AIDS is considered. The model is shown to be positively invariant as well as bounded. Specifically ... -
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 ... -
Mathematical modelling of the Olkaria Geothermal Reservoir
(School of Mathematics, University of Nairobi, 1996-05)The basic equations which govern the flow of fluids in a geothermal reservoir (often a two-phase mixture of steam. and water) are outlined. The governing nonlinear system of partial differential equations that arises is ... -
Mathematical modelling of wind turbine in a wind energy conversion system: Power coefficient analysis
(2012-01)The world is increasingly going green in its energy use. Wind power is a green renewable source of energy that can compete effectively with fossil fuel as a generator of power in the electricity market. For this effective ... -
A Measure of Economic Rationality in the Smallholder Tea Sub-Sector in Kenya
(Department of Agricultural Economics; University of Nairobi., 2001)The smallholder tea sub-sector in Kenya is considered the largest and one of the most successful smallholder schemes in the world. However, tea productivity in this sub-sector has been persistently low when compared with ... -
Measurement of improvement achieved by participation in international laboratory accreditation in sub-Saharan Africa: the Aga Khan University Hospital Nairobi experience
(Oxford University Press, 2014)As part of the ISO 15189:2007 accreditation process, the Aga Khan University Hospital Nairobi laboratory became the first internationally accredited hospital laboratory in sub-Saharan Africa outside South Africa in 2011 ... -
Mechanical Properties of Al–Mg–Si Alloys (6xxx Series): A DFT-Based Study
(MDPI, 2023-09-13)Al–Mg–Si alloys are used in aircraft, train, and car manufacturing industries due to their advantages, which include non-corrosivity, low density, relatively low cost, high thermal and electrical conductivity, formability, ... -
The mechanism of 2-chlorobiphenyl oxidative degradation by nanoscale zero-valent iron in the presence of dissolved oxygen
(Springer Berlin Heidelberg, 2017-11-08)It has recently been demonstrated that the addition of nanoscale zero-valent iron (nZVI) to oxygen-containing water or soil aquifers results in the oxidation of organic compounds. However, there has been little insight ... -
The mechanism of 2-chlorobiphenyl oxidative degradation by nanoscale zero-valent iron in the presence of dissolved oxygen
(Springer Berlin Heidelberg, 2017-11-01)It has recently been demonstrated that the addition of nanoscale zero-valent iron (nZVI) to oxygen-containing water or soil aquifers results in the oxidation of organic compounds. However, there has been little insight ... -
Mechanisms of Analgesic and Anti-Inflammatory Properties of Annona muricata Linn. (Annonaceae) Fruit Extract in Rodents
(Journal of medicinal food, 2014)Unripe fruit of Annona muricata Linn. (Annonaceae) (soursop) is used in traditional African medicine for the treatment of neuralgia, rheumatism, and arthritic pain. This study sought to investigate the analgesic and ... -
Mediation Role of Revenue Management Practices on the Linkage between Hotel Determinants and Financial Performance of Hotels in Kenya
(Scientific Research Publishing, 2021)The study aimed at investigating the mediation role of revenue management (RM) practices on the linkage between the internal and external hotel determinants and the financial performance of hotels in Kenya. The study used ... -
Medicinal plants of Kakamega forests and their consistency applications: Opportunities and Challenges to-date
(J. Pharm. Biol. Sci, 2018)Biodiversity is fundamental and foundation to offering plant germplasmfor scientific investigations in the provision of useful biodata and biomedical data, both to benefit the flora and fauna. Studies were undertaken in ... -
Melissopalynological determination of the Pollen density, Botanical origin and Ogiek Honey types in Eastern Mau Forest, Kenya
(International Journal of Advances in Scientific Research and Engineering (ijasre), 2019)The current international market demands for the set up of honey quality control protocols according to the botanical origin based on pollen content. The objective of the present study was to determine the pollen density, ... -
Metabolic syndrome and its predictors in an urban population in Kenya: a cross sectional study
(BioMed Central, 2017)The metabolic syndrome (MetS) is a clustering of interrelated risk factors which doubles the risk of cardio-vascular disease (CVD) in 5–10 years and increases the risk of type 2 diabetes 5 fold. The identification ... -
Metribuzin mobility in soil column as affected by environmental and physico-chemical parameters in Mumias sugarcane zone, Kenya
(2011-03)The physico-chemical parameters of soil, influences the soil solution characteristics and that may affect the sorption of soil applied herbicides. The present investigation reports the influence of physico-chemical ... -
METRIBUZIN SORPTION DYNAMICS IN ACID SOILS OF NZOIA SUGARCANE ZONE IN WESTERN KENYA
(2011)The adsorption, desorption and leaching of metribuzin in agricultural soil samples taken from Nzoia sugarcane farming area in Kenya were determined using standard methods. The Freundlich adsorption isotherm constants ... -
Microbial and preservative safety of fresh and processed fruit salads, fruit soft drinks and jam in Kenya
(African Journal of Food, Agriculture, Nutrition and Development, 2014)Fresh fru its provide vitamins A and C which are anti-oxidants and other phytochemicals that form a healthy diet and lower the risk of cancer and chronic heart diseases. Kenya’s horticulture production provides 3.82 ... -
Microbial assessment of selected earthen fish ponds in western Kenya
(Elsevier, 2013-01-01)Water-borne infections are among the most recent emerging and re-emerging infectious diseases throughout the world. WHO estimates that 80% of all illnesses in the world are caused by water-borne disease pathogens that ... -
Microbial characterisation and identification, and potability of River Kuywa Water, Bungoma, Kenya
(INNSPUB, 2020)Water contamination is one of the major causes of water borne diseases worldwide. In Kenya, approximately 43% of people lack access to potable water due to human contamination. River Kuywa water is currently experiencing ...