Experimental investigation on a flat plate solar collector using AI2O3 nanofluid as a heat transfer agent.rnMinimum energy requirement of an endoreversible desalination system of sea water.rnHV substation earth grid commissioning using current injection test (CIT) method: worst case scenario determination.rnInfluence of pipe length and flow rate on nano-particle deposition in laminar circular pipe flows.rnA comprehensive solar angles simulation and calculation using matlab.rnCompetence evaluation of mycodiesel production by oleagionous fungal strains: mucor circinelloides and gliocladium roseum.rnAn insight into chemical kinetics and turbulence-chemistry interaction modeling in flameless combustion.rnConstructal complex-objective optimization of electromagnets based on maximization of magnetic induction and minimization of entransy dissipation rate.rnAccuracy evaluation of different topographic regions in Iraq using geometrics methods.rn