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Bushing used for gas insulated switch-gears is a key equipment in GIS, which mainly uses SF6 as its insulating material. The electric field strength inside the bushing and at the surface of the bushing sheath could significantly influence the safety and stable operation. Firstly, the model of a 1000kV bushing inflated with SF6 is built. Finite element analysis is adopted to calculate the distribution...
Carbonized mulch (CM) was used to remove copper (Cu), zinc (Zn) and cadmium (Cd) in solutions and urban road runoff in this study. Parameters investigated included pH, sorbent amount and reaction time. The removal of all three metals by CM was determined by pH and the peak at pH 5.5. The adsorption kinetics of all three metals by CM could meet the pseudo-first-order equation. The adsorption isotherms...
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