그러나 이 이론하에서 유도된 위의 식들은 분자크기가 비슷한 용액에 대하여는 잘 맞지만 실제의 많은 용액에 대하여는 잘 맞지 않았다. 따라서 보다 이론적인 배경을 가진 방법을 통하여 기-액 평형을 더 잘 예측할 수 있는 식들이 개발될 필요성이 있었다.
1964년 Wilson은 용액 내의 분자 크기 뿐만 아
Airport management, in common with others involved in the operation of elements of the civil air transportation system, are required to take measures that will provide a high level of protection of buildings and equipment (including aircraft), in addition to ensuring the safety and personal security of passengers and staff using the system. This must be done in manner that disturbs the normal ope
Like a finger in the macro world so feels a tiny tip on a lever in the nano world a surface Forces are in Pico Newton range the same like intermolecular binding forces
1-1. AFM tip
- actually feels the sample surface.
- silicon nitride
exhibit excellent flexibility, Contact AFM mode
- silicon crystal
high frequency oscillating(100kHz), more stiffer than silicon nitride, non co
1.2 Structure of Planning for Security
Clearly, the subject of security has wide implications that reach far beyond the jurisdictional limits of the airport to central government itself. Planning to meet the needs of a security emergency requires the involvement of a number of organizations, such as:
∎ The airport administration
∎ The operation airlines
∎ The National
surface is below).
2) Fill up a powder uniformly at a hole of a sample holder.
3) Cover it with a paper and press down with edge of a finger.
4) A plane which is a contact a glass plate is a plane using a measurement.
When a powder is a small quantity, we use a glass sample holder. A procedure is below(Fig. 11).
Fig. 11. Filling up at a general glass holder.
1) A h
Aim
Reducing weights
High fuel efficiency
Low fuel consumption
Reduction total amount of CO2 gas
Structure of an automobile
Chassis
Mg-Zn-Zr alloy
Magnesium alloy + Zr
Grain refinement
Mg-Ce alloy
Precipitation Ce on GB at high temp.
High creep strength
Engine parts(Introduction)
Basic engine part
High engine weight ratio
Requir
다. Amino Acid의 Titration과 pH buffer 작용
Amino Acid를 NaOH와 같은 염기로 Titration을 하여 얻어지는 Titration Curve는 적정하는 Amino Acid의 pH buffer 작용을 잘 설명해 준다.
즉 Amino Acid의 Carboxyl기는 Weak Acid이므로 NaOH-와 같은 Strong Base와 반응하면 일정한 pH 범위 내에서 큰 pH 변화를 일으키지 않는 pH Buffer 작용을 한
Amino Acid의 Titration과 pH buffer 작용
Amino Acid를 NaOH와 같은 염기로 Titration을 하여 얻어지는 Titration Curve는 적정하는 Amino Acid의 pH buffer 작용을 잘 설명해 준다.
즉 Amino Acid의 Carboxyl기는 Weak Acid이므로 NaOH-와 같은 Strong Base와 반응하면 일정한 pH 범위 내에서 큰 pH 변화를 일으키지 않는 pH Buffer 작용을 한다는
❍ 개 요
VLE실험 Data로부터 Hexane과 TAME 이성분계의 열역학적인 물성을 분석함으로써 알려진 식들의 적합성을 알아보고 P-x1-y1 diagram을 통해 이성분계 분리의 가능성을 예측한다.
❍ 목 적(Hexane과 TAME계를 선정하게 된 이유)
TAME란 함 산소제의 한 종류로 자동차 연료의 개선을 통한 직접적인
(1) Project Objective
To develop a new commercial product that is valuable, feasible, and practical in the real market.
(2) Deciding The Market for The New Product
In this world, there are myriad markets, consumers, products. However, considering our company's technologies(internal factor) and marketability(external factor), we chose the market of kitchen utensils for our new product.