Abstract: In this paper, the multicommodity network flow (MCNF) problem is formulated as a mixed integer programming model which is known as NP-hard, aiming to optimize the vehicle routing and ...

Keith Urban is gearing up for a record release unlike any he's mounted before: An album full of yacht rock cover songs called Flow State which drops on Friday (June 12.) There will be 10 familiar ...

For new discoveries, everyday mysteries, and the science behind the headlines, follow NPR's ShortWave podcast . Over a century ago, the German psychologist Wolfgang Köhler conducted what became a ...

At the U.S. Army Engineer Research and Development Center in Vicksburg, Mississippi, Robert Moser leads roughly 700 researchers, engineers and computer scientists working on some of the country’s most ...

Add Yahoo as a preferred source to see more of our stories on Google. Contrary to their name, bumblebees are no bumbling oafs. A new study published in Science on Thursday found that these bees ...

Despite having tiny brains, bumblebees have demonstrated a remarkable ability to socially learn how to use tools, solve simple puzzles, and cooperate to achieve a goal. It seems they can also solve ...

Contrary to their name, bumblebees are no bumbling oafs. A new study published in Science on Thursday found that these bees utilized tools to solve complex problems to win a sugary treat, even if they ...

German psychologist Wolfgang Köhler set up a famous experiment more than 100 years ago that changed how scientists understand animal intelligence and the power of insight — or spontaneous ...

In a new study, bumble bees solve a completely novel object-manipulation task. What makes this behavior especially remarkable is that the bees had never been trained. The findings challenge the ...

This illustration shows an array of integrated antennas developed by MIT researchers (right) that minimizes the unwanted crosstalk that can occur in a standard antenna array (left). This innovation ...

Abstract: Metaheuristic algorithms have demonstrated strong effectiveness in solving complex real-world optimization problems. This paper presents two discrete metaheuristic approaches for the ...