9. Control Residual Stress
(1) 개요
잔류응력은 외력을 제거 한 후 상온에서도 재료 내부에 존재하는 응력
국부적 가열/냉각으로 인한 열팽창 변형의 불균일 분포와 고온 소성변형 등이 원인
인장 잔류 응력
압축 잔류 응력
↓
구조물의 취성 및 피로 파괴, 상변태 촉진
구조물의 부식저항에 영향
most students are educated in government school and their education facilities are not good.
Some teachers in government school think that they don't need to teach for student. Because the student's job is determined by succession. Even 25% of elementary school teacher don't show up.
Two classes get together in the same place and students are crouching in the hallway to study by themselves.
for Indians to have Hinduism lifestyle since their culture is strongly inspired by caste system which is based on Hinduism. The caste system is still existing and ruling the whole Indians. Their social positions are already determined before they are born. Indians do not complain because they believe ‘karma’ in Hinduism, which means that the sum of their good and bad actions in their lives wi
10. Comparison of the strategy expanding abroad between E-Mart and Carrefour in China.
E-Mart Carrefour
Joint ratio 98:2
(aggressive investment) 55:45
(Focus on reducing investment)
Store size 3,820 Pyung
(display stand’s number of product in entrance) 1800 Pyung
Store location Subcenter of a metropolis (10M away from each other),
deficit of same facility in same area
∴ Focus
earlier statement.
① cancel ② modify
③ withdraw ④ repeat
⑤ confirm
10. 다음 문장이 시사하는 것은 ?
The best equipment a young man can have for the battle of life is a conscience, common sense and good health. There is no friend so good as a good conscience. There is no enemy so dangerous as a bad conscience. Conscience makes us either kings or slaves.