You could buy your own electric generator, but it was not very cost efficient if your needs varied diurnally or seasonally.
In WMN that the shared medium is extremely valuable, flooding the network with excessive feedback messages or under-utilizing the links with excessive non-dynamic transmission delays to enhance the fairness is not very cost efficient.
In-work benefits and public works are not very cost-efficient in terms of raising employment, but might be in reducing poverty and inequity.
However, due to the intermittent nature of wind power and similar sources, these measures are not very effective or cost-efficient.
Things like air-conditioning systems are not very efficient.
Okay, gasoline engines are not very efficient.
But while successful, Dr. Castle said, Pap screening is "not very efficient," costing billions of dollars a year.
"They aren't very efficient and don't want consumer business," he said.
If these concessions are supposed to increase housing supply, they aren't very efficient.
"It's very difficult, and probably not very cost efficient, for a robot to make a salad," Tellex's teaching assistant, Josh Roy, said.
"That's not very energetically efficient, and it's probably a sign that they're hungry".
