Organic solar cell
a photovoltaic cell that uses organic electronics like conductive organic polymers or small organic molecules for light absorption and charge transport
Basic principle of solar cell
When light is illuminated at cell, the photons are absorbed in the organic layers.
The excitons diffuse to interface between donor and acceptor.
The excitons are separated by electron
The word cloud computing means that all the data get to be in cloud (the metaphor of network environment), not each hard disks. That is, every data can be installed in any time and any place if there is PC, PDA or just cell phone. The basic principle of cloud computing is to gather each computer’s resource which exist in another physical place by virtualization. It can be demonstrated as we can
Interpretation and Ecologically Sustainable Tourism
래인은 다음과 같이 생태학적 지속가능한 관광을 정의했다.
지역 생태계를 억누르지 않고 일을 만족하는것, 이것은 자연환경을 남용해서는 안되고 건축학적으로 존경받을만 해야한다. 관광의 이익은 많은 지역사회를 통해 확산되어야 한고 연안의 좁은 땅이
51. Celler-Kefauver Antimerger Act : This act, passed in 1950, made it illegal in certain circumstances for a firm to merge with another by purchasing its assets. This strengthened the Clayton Act.
셀러-케파버 반합병법 : 1950년에 통과된 법령으로 특정한 상황에서 한 기업이 다른 기업의 자산을 구매하여 합병 하는 것을 불법으로 만들었다. 이것은
Ⅰ. Hotel structure
1. Chain hotel
Hong kong-based Mandarin Oriental traces its history from 1926 when its first owner, Hong kong Land, acquired the Gloucester Hotel in Hong Kong. In 1974, the group expressed its intention to expand into the rest of Asia with hotels that reflected the Hong Kong Mandarin Oriental's standard. The group went though various corporate changes. Eventually part o