완전 소성 재료의 구성방정식으로써 널리 사용되는 것은 대체적으로 최대 비틀림에너지기준(von Mises yield criterion)이다. 또한 최대 전단응력기준과 최대 비틀림에너지기준 모두 응력결합 하에서의 점탄성(viscoelastic) 현상의 해석에도 사용된다. 이러한 생각을 확장하면 변형률-경화 재료(strain-hardening mater
most energy is lost with heat loss. Additionally, in case of driving in lowspeed, the fuel efficiency is very low. On the other hand, enhanced energy efficiency through electronic motor and battery, enabled hybrid car to operate better even in lowspeed. With much higher energy efficiency, hybrid cars consume less oil, representing that hybrid car is more efficient and eco-friendly. Following
Low Cost Carriers have now just begun operations. The barriers and opportunities have yet to be clearly established. What is necessary to be successful and enter the safety stage? Locally, by opening new highways and developing KTX high-speed trains, customer demand is reduced and competition among the two existing LCCs and five upcoming LCCs will bring about keen price competition. Also, people
Ⅰ. 개요
자동차에서는 보통 기관을 시동한 채 차륜의 축을 기관의 크랭크축과 접속하거나 차단하여 주행하든지 정지하든지 한다. 또 주행 중에는 차의 속도에 따라서 크랭크축과 차축의 물림 기어를 여러 가지로 바꾸게 되어 있는데, 이와 같은 동력전달에 마찰 클러치가 사용된다. 보통 단판건식·
Manufacturing IKEA Style
In recent history many companies tried to streamline their operations by closing plants and outsourcing production. IKEA has thrived because it took a different approach. As the company's territory expanded worldwide, their network of suppliers and manufacturers grew with it, with IKEA sourcing local materials whenever possible.
There are currently 1,220 suppliers in 5