Abstract: Balanced systems refer to a class of system architectures composed of multiple components with similar or synergistic functions, whose normal operation depends on the coordination between ...

At the Skoll World Forum this year, I watched the next generation of social innovators receive their awards. The energy in the room was familiar: purpose, urgency, possibility. But sitting in the ...

BERLIN (AP) — A problem with a communications system forced Germany’s railway network to halt all trains late Tuesday, leaving passengers stranded across the country. Trains were held at stations and ...

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Abstract: The Multi-depot Vehicle Routing Problem with Uncertain Demand (MD-VRPUD) can be modeled as a bi-level optimization problem (BLOP), because it requires both assigning customers to different ...

The country’s most severe drinking water problems, from high levels of contaminants and foul-smelling water to pipe breaks, low water pressure, and expensive rates, are generally found in the ...