Faculty of Science & Technology (FST): Recent submissions
Now showing items 2021-2040 of 4284
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Determination of nitrate by suppressed ion chromatography after copperised-cadmium column reduction
(2004)The nitrate-selective copperised-cadmium (Cu-Cd) reduction reaction coupled directly to the highly sensitive nitrite ion chromatographic detection, produced a more precise method for determination of nitrate than any one ... -
On the solution of the Fokker-Planck diffusion equation by the path integral method
(Department of Physics, University of Nairobi, 1976)A dynamical system with probability density of state satisfying the Fokker-Planck diffusion equation is considered by starting from a Langevin type of equation. The path integral method is applied in solving the basic ... -
The study of the influence of stochastic sources in Boltzmann kinetic equation
(Department of Physics, University of Nairobi, 1976)The linearized Boltzmann's kinetic equation is obtained by reducing Bogolubov's hierarchical equation. Further, we apply the correction function prescription and thereby arrive at a Langevin type of equation. The solution ... -
On a Certain Transformation of Boltzmann Equation
(Department of Physics, University of Nairobi, 1974)An identical transformation of the Boltzmann equation leads directly to an equation of a purely stochastic process. A simple special case is obtained from the well-known formulae of neutron physics on the transition ... -
High-frequency sum rules for the quasi-one-dimensional quantum plasma dielectric tensor
(Department of Physics, University of Nairobi, 1988)A high-frequency sum-rule expansion is derived for all elements of the spinless quasi-one-dimensional quantum plasma response tensor atT=0 K. As in the magnetized classical plasmas, we find that Ω 4 13 is the only coefficient ... -
High-frequency sum rules for classical one-component plasma in a magnetic field
(Department of Physics, University of Nairobi, 1988)A high-frequency sum-rule expansion is derived for all elements of a classical plasma dielectric tensor in the presence of an external magnetic field, Ω 4 13 is found to be the only coefficient of ω−4 that has no correlational ... -
Results of optical, thermomagnetic and electron microprobe analyses of titanomagnetite grains
(Department of Physics, University of Nairobi, KenyaDepartment of Geophysics, University of Western Ontario, London, Canada, 1982)This paper presents results of a study of titanomagnetite from specimens of ten different rock units. The rock units comprise trachytes, basalts, ignimbrites, nephelinites, olivine melanephelinites and welded tuffs from ... -
A crustal seismic refraction line along the axis of the S.Kenya Rift
(Department of Geology, The University, Leicester, UKGeophysikalisches Institut, Karlsruhe University, GermanyDepartment of Geological Sciences, University of Texas, El Paso, USADepartment of Physics, The University of Nairobi, Kenya, 1989)The first phase of the Kenya Rift International Seismic Project was carried out in 1985 (KRISP 85) and included both earthquake and explosion programmes. In the explosion programme, 13 shots ranging in size between 100 kg ... -
A Seismic Investigation of the Kenya Rift Valley
(Department of Geology, University of Leicester, UKGeophysikalisches Institut, Universität Karlsruhe, FRGDepartment of Geological Sciences, University of Texas, USADepartment of Physics, University of Nairobi, Kenya, 1990)In August 1985 the crustal structure underlying the southern part of the Kenya Rift Valley was investigated by long-range explosion seismology. the experiment (KRISP 85) consisted of two seismic lines in the central sector ... -
Environmental Radiation Survey of the Area of High Natural Radioactivity of Mrima Hill of Kenya
(Department of Physics, University of Nairobi, 1991)This report is on radiation contamination mapping of Mrima Hill in Kenya's south coast. A survey, covering the whole hill and the surrounding areas was carried out using a contamination meter. The gamma dose rate is extremely ... -
Seismic Contributions of the Kenyan Rift Valley
(Department of Physics, University of Nairobi, 1994)The past and the present understanding of the deep lithospheric structures beneath the Kenyan Rift Valley is reviewed and the results of the long-range explosion seismic experiment are discussed. A sill like intrusive body ... -
The influence of pre-existing structures on the evolution of the southern Kenya Rift Valley — evidence from seismic and gravity studies
(Department of Geology, University of Leicester, UKGeological Institute, University of Copenhagen, DenmarkDepartment of Geological Sciences, The University of Texas, USADepartment of Physics, University of Nairobi, Kenya, 1997)The Kenya Rift is an active continental rift that has developed since the Late Oligocene. Although a thermal origin for the rifting episode is indicated by the scale of volcanism and its relative timing with uplift and ... -
Spectral analysis of ground magnetic data in Magadi area, Southern Kenya rift
(Jomo-Kenyatta University of Agriculture, Science and Technology, Department of PhysicsUniversity of Nairobi, Department of PhysicsUniversity of Nairobi, Department of GeologyJomo-Kenyatta University of Agriculture, Science and Technology Department of Physics, 2012)The area surrounding Lake Magadi in the southern Kenya rift is characterized by hot springs that issue from fractures distributed along the shores of the lake. Presence of earthquake swarms that cluster in northern margin ... -
Palaeomagnetic results from late Archaean and early proterozoic granites from South Western Kenya
(Department of Physics, University of Nairobi, 1989)Results of a palaeomagnetic study carried out on the Migori granites exposed in the South Western part of Kenya are presented. The granites of Post-Nyanzian and Post-Kavirondian ages are dated at View the MathML source, ... -
Morphological and Biochemical Inter-relationships amongst some isolates of Cercospora from Kenya
(University of Nairobi,College of biological and physical science, 1989) -
A palaeomagnetic study of lower Proterozoic granites from Western Kenya
(Department of Physics, University of Nairobi, 1979)This paper reports a palaeomagnetic study of the lower Proterozoic granites, exposed in the western part of Kenya and dated at 2530 ± 50 Ma (λRb= 1.39 × 10−11 yr−1). Ten sites out of 13 have yielded stable palaeomagnetic ... -
Equatorial paleomagnetic time‐averaged field results from 0–5 Ma lavas from Kenya and the latitudinal variation of angular dispersion
(Department of Geological Sciences, University of Florida, Gainesville, Florida, USADepartment of Earth and Planetary Sciences, Rutgers, State University of New Jersey, USADepartment of Physics, University of Nairobi, Kenya, 2010)[1] Lavas of Pliocene-Pleistocene age were sampled in two regions in Kenya: Mount Kenya on the equator and the Loiyangalani region, east of Lake Turkana, at about 3°N. We sampled 100 sites distributed around the Mount Kenya ... -
Environmental contamination of food through toxigenic moulds in Kenya
(University of NairobiCollege of biological and physical science, 1990) -
A proposed species concept in the genus Cercospora with reference to Kenyan species
(University of NairobiCollege of biological and physical science, 1994)
