Edward William

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This study employs Particle Induced X-ray Emission (PIXE) analytical technique for the analysis of elemental concentrations in the roadside soils in Calabar, Nigeria, in order to ascertain the levels of heavy metals in relation to traffic density. Twenty one elements, viz., Al, Si, P, Cl, K, Ca, Ti, V, Cr, Mn, Fe, Ni, Cu, Zn, Ga, As, Rb, Sr, Zr, Nb and Pb(More)
= kinematic viscosity (mlseAc : viscosity (kg/m-sec1 A small circular heat transfer cell was used T shear stress (Nfm 2 ! to study the cooling of a disc heat source by a = mass flow rate (kysec) thin evaporating liquid film. This small scale density (kg/m3l thermosyphon is a thermal spreader and a passive = surface tension (N/m) heat sink in that the(More)
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