2. Background Note
-Assam, Attock Oil company
- The Oil and Natural Gas Directorate formed in 1955
-ONGC Act in 1959
- Offshore operations in the early 1970s
- Discovered a rice oil field in Bombay High
- Economic liberalization
-Deregulate & delicense
Lost the regulatory protection
Became vulnerable to price fluctuations
Finally, posted continuous losses
ONGC
Ge
1.3. FDM 위 각주 1)과 동일
(2차원 근사 수치해석)
Cartesian 좌표계에서 열확산방정식의 일반적인 형태는 다음과 같다.
'Introduction to heat transfer', Incropera, pp.72
여기서 X축, Y축 2차원 열전달이라는 가정에 의하여 위 식은 다음과 같이 된다.
그리고 앞서 가정한 정상상태 조건과 내부에너지원이 없
What is the Solar cell??
An energy source that converts light energy into electric energy
The solar cell does not need the supply of additional fuel and cause secondary environmental pollution
P-N junction
P-type semiconductor
N-type semiconductor
Band bending
Barrier
Electric field
Higher efficiency
Lower cost
Mass production
Nano technology
&
New material design
Electrochemical devices that convert chemical energy in fuels into electrical energy directly
High efficiency & low environmental impact
Component
Five fundamental classes exist, depending on the nature of the electrolyte
PAFC
AFC
by high viscosity of blood
Distinct swimming strategy
corkscrew-like motion
changing their body helicity
▪ definition
- relative orientations of spin
- clockwise : +
counterclockwise : -
Domain Length :50nm
Total Length : 100nm
Characteristic
1. Combine with capsule
2. Useful for medical treatment
Ex) Drug transfer, exploring robot
The representative afforestation success country of the twentieth century
(UN said) South Korea
New strategic vision model of KOREA
Prepare for Climate change
Bio-Energy
Reduce carbon emission
Develop Green Job
Etc
Short of Raw Material for Green Growth
Size of Land
Weather
Geographic Characteristic
Slide, Tree distribution, Mountain
Better Climate C
additional redox mediators, enzymes, which exibit redox properities and are able to directly exchange electrons with conducting materials, are applied.
Hemoproteins usually are able to exchange electrons directly with electrode.
Electron transfer proteins
ex. Cytochrome-c, oxidoreductase,
ferrocytochrome-c, O2 oxidoreductase …
Related Physical Principle
-Evaporation
Engineering Operation Principle
-Structure
-Circulation Steps
-Heat Exchange
Influencing Factor On Wind Power
Angle: Optimum Angle Exist
Number: 3~4 is general
Material: Strong but Light
Width: Wide
Our Product < Best air conditioner >
Heat transfer efficiency↑
→Connects electric fan wi
of technologies
( solar, wind, nuclear, ocean energy etc.)
- Simple process
- Low cost
- Friendly to the environment
Can be made on flexible substrates
Stable for temp & intensity variation
- Applications
We’re sure that DSSCs will success in the future market!
Although DSSCs cannot cover the most of energies,
they will be something which you can see at everywhere
2. Market Commentary
As field of telecommunication business is in market saturation, it seems to be hard to expect more growth in that field. However, we don't think it will fail readily due to a lot of users. Telecommunications services need large amount of money at the first time, and they need comparatively long period to retrieve the investment. As their members are increasing, in this