| KS OmniScriptum Publishing

106,570원  | 20141226  | 9783659668517

In recent decades, saving energy has become a vital issue in many countries. The energy awareness and energy conservation has started to open up new avenue in saving energy area. Lighting is one of the major uses of electricity and accounts for major portion of national electricity usage for instance educational building lighting system consumes about half of total energy usage of building.