Abstract For n -vertex graphs with treewidth $$k = O(n^{1/2-\epsilon })$$ k = O ( n 1 / 2 - ϵ ) </mml:math...

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in this study, performance of oil droplet separator in crankcase ventilation system for three engines, ford-ecoboost (impactor with variable area), nissan-vq37de (inertial impactor), and peugeot-xu7 (cyclone) at the same volumetric flow rate has been studied experimentally. because of the complexities of geometrical and functional in internal combustion engines, a test rig is designed to study ...

Fats, oils and greases in waste water frequently cause serious environmental problems. A commercial preparation was tested for its ability to degrade oil grease wastewater. As substrates, two fats (lard beef fat) four (rape seed oil, sunflower palm olive oil) were chosen. The degradation of different substrates investigated by the determination lipid at pH 7, temperature 25 °C, aerobic conditio...