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Current densities from 40O Am to 1000 Am were used to investigate the electrowinning of cobalt from sulfate solutiaiie. The cell used was a cylindrical beaker of 1000 ml capacity. Two lead anodes and one stainless steel cathode were used as - electrodes. The cathode was prepared electrolytically...

Small-scale mining (SSM) activities in Tanzania are conducted using rudimentary mining tools such as shovels, hoes, picks and chisels. In most cases, mining practices do not use engineering plans and designs and usually are done haphazardly resulting in abandoned shafts, pits, trenches and other...

Angolan diamonds have been produced for more than 90 years. Before independence, indigenous people were not allowed to possess diamonds; those caught with diamonds were executed. After independence the new government empowered it's people through issuing licenses to small-scale mining. Over the...

In this paper we will be considering two measures on sorae measure space (X, A). For general p > o we can consider the tiro norms |jf|[p,y and }|fj|p,v. We are interested in conditions on y and v that make ||f||p, y - | [f | |p,v for all f in sorae class of functions, i.e. when there exist...

Monitoring and evaluation assessments of the IRS programmes reveal an inability to meet set IRS coverage targets. The purpose of this was to determine the factors that influence the low IRS coverage. A cross sectional household study was carried out in Lusaka District’s Mtendere, Kanyama and...

This work is an experimental study on percolation and electrical conductivity in two-dimensions with an aim of confirming some of the theoretical predictions, and measuring some of the parameters introduced in the theory. These parameters include the percolation threshold p , the critical...

Seismic refraction and geoelectrical depth soundings were employed in Lusaka District of Zambia. Another survey was conducted in Kabwe District using resistivity mapping and depth sounding techniques. The purpose of these surveys was to evaluate the effectiveness of the methods in locating...

Metal oxide thin films have been used in thin film solar cells and other solar energy applications for many years. The main concern has been to improve their physical, electrical and optical properties in order to increase their efficiency and lower their production costs. Zinc oxide doped with...

This study explores the pattern of interactions between seven species of weaver birds viz: the White Browed Sparrow Weaver (Plocepasser mahali), the Spotted Backed Weaver (Ploceus cucullatus), Cabanis's Masked Weaver (Ploceus intermedius), the Masked Weaver (Ploceus velutus) and three species of...