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The Booming Exurbs |
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For decades, American professionals have been struggling with a trade-off. To advance their careers, they typically work in big cities, where corporations are headquartered and jobs are plentiful. However, to enjoy a high quality of life, they live in the suburbs, where the houses are large, the yards are big, and the neighbors are friendly. |
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For decades, American professionals have been struggling with a trade-off. To advance their careers, they typically work in big cities, where corporations are headquartered and jobs are plentiful. However, to enjoy a high quality of life, they live in the suburbs, where the houses are large, the yards are big, and the neighbors are friendly. |
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The On-Line Advertis |
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In the golden age of television, companies that wanted to make a major impact created what was called a 뱑oadblock??they advertised at the same precise time on all three networks to ensure that anyone watching television at that moment would have to watch their message. |
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[GT] 고효율 그래핀 기반의 슈퍼 |
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뮌헨 공과 대학(Technical University Munich) 연구팀이 고효율 그래핀 기반 슈퍼 커패시터(super capacitor)를 개발했다. 슈퍼 커패시터는 전지로 사용하도록 전기 용량의 성능을 중점적으로 강화한 커패시터로, 보통 교류전원으로부터 공급받아 충전해 두고 전원이 끊어진 경우에 전력을 공급할 목적으로 사용한다. 연구팀이 개발한 이 에너지 저장 장치의 기초는 현재 배터리 기술에 필적하는 성능을 가진 새롭고 강력하며 지속 가능한 그래핀 하이브리드 재료에 있다. |
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