Ⅰ. Introduction
1. Study background and objectives
Recently, due to environmental pollution and climate change, attention to environment is more growing than ever. Especially, buildings form 40% of energy and resource consumption, 30-40% of carbon dioxide emission, 20-25% of waste discharge, 17% of water consumption, and 25% of wood consumption, so buildings are mainly responsible for
1. 제조방법
1) Styrene과 Acrylonitrile의 Copolymerization
라디칼 중합에 의한 공중합 반응에 있어서, 생성되는 공중합체의 조성은 각 단량체의 조성은 각 단량체의 조성은 각 단량체의 상대적 반응성과 농도에 의해서 조절된다.
어떤 한 단계에서 생성된 공중합체 중의 단량체 M의 몰분율을 F₁그 단
grade my lunch, eat a few tests
and hope for the best.
- How do you hold it in?
- Well, like everybody else, Ruthie.
I just cross my legs real tight.
No. I was talking
about your excitement.
- Excitement?
- The wedding.
Congratulations!
The wedding! Sara and l.
Oh, the wedding.
Oh, l`m looking forward to it.
Aren`t you, honey?
- It`s today.
- Are you sure?
- The wedding is today. Okay?
- I believ
...............
80%: cholesterol stones
20%: pigment stones
유병률: 4.25% (서양보다 약간 낮다)
Lack of depth perception
View controlled by camera
operator
More difficult to control
hemorrhage
Decreased tactile discrimination
Potential CO2 insufflation
complication
Adhesions / inflammation
limit use
Slight increase in bile duct
injury
중략.............