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Global warming is getting worse.
but the people are getting electricity consumption increasingly
.Electricity usage is limited. So people will need to consume electricity wisely.
General electrical outlets manage plugs at one time,
therefore they are not able to supervise plugs individually,
waste energy and usually contain the danger of conflagration.
However, if timers are added to manage plugs individually,
energy won't be wasted.
They won't worry much about conflagration
and are able to handle plugs each with this new designed electrical oulet.
Hoseo university
Hoseo university
Chungcheongnam-do, South Korea
Hoseo university
Hoseo university
seoul, South Korea
Beom jun kim
Hoseo university
Gyeonggi-do, South Korea
Eui-jin Lee
Hoseo university
Gyeonggi-do, South Korea
jueun jung
Hoseo university
Gyeonggi-do,, South Korea
ji won park