Search
Now showing items 1-7 of 7
Analysis of Soil for Trace Elements along Two Highways of Kenya
(Faculty of Science Kenyatta University, 1998)
Energy dispersive X-ray fluorescence technique has been used to study the levels of lead and other
toxic trace elements in the soil samples collected along two major highways (Mombasa and Thika)
of Kenya at the various ...
Radioactivity in Surface Soils around the Proposed Sites for Titanium Mining Project in Kenya
(Journal of Environmental Protection, 2011-06)
Radioactivity measurements were carried out around Maumba and Nguluku villages, two of the proposed sites for tita-nium mining in the coastal area of Kenya. Samples of surface soils were analyzed using a HPGe gamma ...
Natural and artificial radioactivity levels in sediments along the Kenyan coast
(Elsevier, 2004-11)
Exposures to various components of the natural background radiation in Kenya were estimated using measured activity concentrations of natural radionuclides and conversion factors. Contributions to the total effective dose ...
An investigation of the repeatability of calibration factors in gamma-ray spectrometry of geological materials
(Elsevier, 2004-01)
A NaI(Tl)-based gamma spectrometer for the analysis of geological materials was calibrated using the IAEA reference materials RGU-1, RGTH-1 and RGK-1. To simulate typical geological samples, two additional standards were ...
Evaluation of Geophagia as a Pathway for Internal Exposure to Ionizing Radiation
(2015-03-02)
Geophagia, the deliberate ingestion of soil, is a complex eating habit found among animals and human beings around the world. Among other reasons soil ingestion is perceived as a source of essential mineral supplements, ...
Charge Transport Mechanism in Thin Cuticles Holding Nandi Flame Seeds
(International Journal of Biomaterials, 2009)
Metal-sample-metal sandwich configuration has been used to investigate DC conductivity in 4 mum thick Nandi flame [Spathodea campanulata P. Beauv.] seed cuticles. J-V characteristics showed ohmic conduction at low fields ...
Electrical Switching in Thin Films of Nandi Flame Seeds Cuticles
(Hindawi Publishing Corporation, 2009)
Current-voltage (I-V) characteristics of Nandi flame seed cuticles (NFSCs) have been studied as a function of irradiation, annealing, and poling temperature. The cuticles showed memory and threshold switching. Threshold ...