This paper proposes an automatic system that treats the household waste water to obtain optimum pH which is suitable for crop irrigation. Each plant species has a preferred pH and in general, the ...

The paper firstly presents the model of an irrigation canal, obtained by linearizing Saint-Venant equations around a steady state. Classical control politics for an irrigation canal are then ...

Duffy still wouldn’t give a price tag of his expansive overhaul of the air traffic control system that he said is clearly needed after the deadly midair collision over Washington, D.C., in January ...