Pollutants resulting from oil refining operations cause harmful effects on public health, especially for workers exposed for long periods. Measuring the level of specific contaminants in the blood of refinery workers is necessary to understand the relationship between exposure to pollutants and health status. This study aims to determine the levels and nature of heavy metals in the blood of occupational exposure workers in the Al-Dora refinery, Baghdad. A total of 20 blood samples (15 exposed workers and 5 non-exposed individuals (control)) were investigated to assess the level of heavy metals. An atomic absorption spectrometer (AAS) was used to measure the levels of Cr, Cd, Pb, and V in the blood samples. The mean concentrations of hea
... Show MoreThe present study considers to confirming the applicability of flow with double-sided square lid driven cavity flow by using the lattice Boltzmann equation with moment-based boundary conditions for no slip boundaries. The boundary conditions are applied over the hydrodynamic moments of the lattice Boltzmann equations locally at each node. The investigation is carried out numerically for both single and multiple relaxation time models. To simulate two-sided lid driven-cavity flow, the top and bottom walls are moving with constant velocity while other walls are stationary. Various Reynolds numbers are used in a range of 100 and up to 5000. The present method shows the effect of the moving boundaries on the two symmetrical cavities that i
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