changeable shafts enabled the variation. Also, golfers—especially core golfers—are willing to pay more to extend their driving distance and to improve their own scores. They prefer not only well-made clubface, but tungsten-made shaft with suitable sizes. Considering all market situations, most golf equipment manufacturers have been trying to co-develop various size lines of proprietar
change when once you select a brand and late 20's-30's market is already close to saturation. So the weakness of early 20's market in the future to maintain market-direction has been pointed out as a very dangerous problem. To solve these problems, SK Telecom designate 'Twenties 011 TTL' to attract the 20's customer. so SK Telecom began to increase rapidly young customer and target customer base
change when once you select a brand and late 20's-30's market is already close to saturation. So the weakness of early 20's market in the future to maintain market-direction has been pointed out as a very dangerous problem. To solve these problems, SK Telecom designate 'Twenties 011 TTL' to attract the 20's customer. so SK Telecom began to increase rapidly young customer and target customer base
indoor environmental score of buildings and occupants' satisfaction, and research about the correlation between criteria and satisfaction. Second, we will compare and analyze between satisfaction of LEED buildings and non LEED building’s, and research effectiveness of LEED certification. As a result, we will suggest development to indoor environment of green office buildings for more human.