Browsing Faculty of Science & Technology (FST) by Title
Now showing items 2735-2754 of 4283
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nth-Aluthge transform of w-Hyponormal Operators
(Pushpa Publishing HouseSchool of Mathematics, University of Nairobi, 2011)In this paper, it is shown the exact location of w-hyponormal operators in a series of operator classes and that; the spectrum of the nth-Aluthge transform of any operator equals that of the operator and for w-hyponormal ... -
Numerical simulation of vibration of horizontal cylinder induced by progressive waves
(University of Nairobi, 2016)Maritime structures often comprise cylinders of small diameter relative to the prevailing wave length. This paper describes the direct forcing immersed boundary simulation of the hydroelastic behaviour of a rigid, horizontal ... -
Numerical solution for subcritical flows by a transonic integral equation method
(University of Nairobi.School of Mathematics., 1977)THE integral equation for two-dimensional transonic flows1" 3 involves a singular kernel. Numerical solution of the equation has been attempted by various methods. 2" 7 A major computational challenge concerns the ... -
Nutrient cycling in a tropical forest ecosystem
(Department of Botany, University of Nairobi, 1986) -
Nutrient Relationships In Shallow Water In An African Lake, Lake Naivasha
(University of Nairobi, 1981-05)In the littoral zone of a shallow, tropical lake (Lake Naivasha, Kenya), average nutrient composition of emergent macrophytes along a permanent transect (0–2m depth) on a dry weight basis was: P 0.23%; N 0.96%; and S 0.11%. ... -
Nutritive value of papyrus (Cyperus papyrus, Cyperaceae), a tropical emergent macrophyte
(University of NairobiDepartment of Botany, 1989)Papyrus (Cyperus papyrus, Cyperaceae) covers large areas in tropical African wetlands. Analysis of its nutritive value has revealed that crude protein is higher in umbels than culms. Ruminai dry matter digestibility of ... -
Observation of Meyer-Neldel rule in Se 100− XM (M= In, Sb) X chalcogenide glasses
(2015)Non-isothermal Differential Scanning Calorimetric (DSC) studies were done on Se100−XM(M=In, Sb)X chalcogenide glasses prepared by the melt quenching technique. The composition-dependent activation energy for glass to crystal ... -
Observation of trade Wind Inversions during a Dry Period
(Department of Metereology, 1984) -
Observational evidence of climate change on extreme events over East Africa
(University of Nairobi,, 2013)Examination of trend patterns of rainfall and temperature extremes over East Africa (EA) was based on graphical, regression and Mann-Kendall test approaches, while perturbations of rainfall, sunspot activity (SA) and ... -
An observational study of 300 mb winds in the tropical belt. Part I: Kinematic parameters
(University of Nairobi, 1983)This study is diagnostic in character and entails a systematic investigation of the kinematic parameters of the mean monthly 300 mb horizontal-motion field for the global tropical region during January, April, and ... -
An observational study of 300 mb winds in the tropical belt. Part II: Dynamical interpretation
(University of Nairobi, 1983)An observational study of 300 mb winds in the tropical belt. Part II: Dynamical interpretation -
Observations and modeling of biomass and soil organic matter dynamics for the grassland biome worldwide
(University of NairobiCollege of Biological and Physical Sciences,University of Nairobi, 1993-12)Century is a model of terrestrial biogeochemistry based on relationships between climate, human management (fire, grazing), soil properties, plant productivity, and decomposition. The grassland version of the Century model ... -
Observations on Schistosoma haematobium egg output in Kenya.
(University of Nairobi.Department of zoology, 1974-04)No abstract -
Observations on the changing vegetation of Tsavo National Park (East)
(University of Nairobi, 1968-08)An analysis of woody vegetation in Tsavo National Park (East) by extensive variable-plot sampling indicates that the vegetation had been differentially destroyed up to 1966, but that by 1967 considerable local shrub ... -
Observations on the glycoalkaloid content of diploid and tetraploid Solanum khasianum Clarke
(College of Biological and Physical Sciences, 1971) -
Observations on the infection of bulinid snails with Schistosoma mattheei. I. The susceptibility of Bulinus africanus and Bulinus truncatus.
(University of Nairobi.Department of Zoology, 1968-09) -
Observations on the infection of bulinid snails with Schistosoma mattheei. II. The mechanism of resistance to infection.
(University of Nairobi.Department of zoology, 1971-02)Not abstract available -
Observations on the Low-Energy Limits for Metal-to-Ligand Charge-Transfer Excited-State Energies of Ruthenium(II) Polypyridyl Complexes
(Department of Chemistry, 2010)The 77 K emission spectral maxima of bis(bipyridine)ruthenium(II) complexes are found to approach a limit at energies below about 14 000 cm−1. There is also evidence for related low-energy excited-state limits in some other ... -
Observations on the transmission of schistosoma haematobium and schistosoma bovis in the lake region of Tanganyika.
(University of Nairobi.Department of Zoology, 1964)Previous investigations have shown that in the Lake Region of Sukumaland, Tanganyika, where Schistosoma haematobium is highly endemic, Bulinus (Physopsis) nasutus is responsible for the transmission of that schistosome in ... -
Observed changes in wet days and dry spells over the IGAD region of eastern Africa
(University of Nairobi, 2023)Changes in wet and dry patterns have an impact on rain-fed agriculture, crop productivity, and food security in Eastern Africa. The purpose of this research is to look into the changes in wet days and dry periods within ...