Glass, aquarium-style enclosures are seldom advised by snake keepers as they do not efficiently maintain temperature and humidity.
In dimensions higher than 2, efficiently maintaining the smallest enclosing sphere of a set of moving points is an open problem.
Ships of war were mass-produced at a moderate cost by the Carthaginians in their excellent harbors, allowing them to efficiently maintain their control of the Mediterranean.
Ibn Hawqal mentions the dry arid land surrounding the city that supported little agriculture, he mentions how efficiently the inhabitants of the city maintained fishing vessels and trade.
Drilling new wells efficiently and then maintaining them requires the company to employ a large number of engineers.
However, with the onset of the Panic of 1837, Young Montrose faces bankruptcy unless he is able to maintain the plantation efficiently and keep it working properly.
This attraction-repulsion maintained inertia efficiently, similar to a flywheel, such that the wheel spun from a very long time and was thought supernatural by some.
In order to efficiently maintain the intersection points of the sweep line L with the input line segments and the sequence of future events, the Bentley-Ottman algorithm maintains two data structures:
Efficiently maintaining computing solutions from the datacenter to the desktop is a vital concern for end-users, OEMs, ISVs, and integrators alike.
Efficiently maintaining the kinetic width of a point set in dimensions higher than 2 is an open problem.