Cross-coupling has been one of the most popular types of reactions in organic chemistry for decades. The pharma and agrochemical industries use these methods on a large scale to forge bonds between ...

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Abstract: A coupling is a mechanical element that allows one shaft to transfer its rotational energy to another shaft located at a great distance while maintaining a constant rotational speed. Flange ...

In tightly coupled organizations, supervisors know exactly what all their employees are doing and management can coordinate all the activities of different departments according to a central strategy.

A novel modified multi-objective differential evolution algorithm was proposed to minimize material mass and margin strength of a flange couplings optimization system. Chaos operator was used to ...

Flange-bearing frogs explained: On a flange-bearing or lift frog, like this one on the diamond at Ridgley Tower, Springfield, Illinois, the main high-speed route crosses the diamond on a solid rail, ...