Inorganic phosphor
○ A phosphor, most generally, is a substance that exhibits the phenomenon of luminescence.
○ Phosphors are often transition metal compounds or rare earth compounds of various types.
○“Classical” inorganic phosphors usually consist of a host lattice with activator ions doped into it in small concentrations, typically a few mole percent or less.
Host lattice &
Requirement of
renewable energy
Opportunity
Governmental
support
Promising
market
Competition
Threat
Exposure to
global economy
Ecomagination
GE’s commitment to imagine and build innovative solutions
that benefit our customers and society at large.
Our commitments include:
• Doubling our research investment
• Introducing mo
Low carbon green growth” policy to participate in trend of reducing emission of carbon dioxide.
2) Rising oil price
In July, 2008, Dubai oil prices exceeded $130. High demand from China and India caused the soaring of oil prices which had been stable for 20 years’ after the ‘Oil shock’ to that led to unstable condition in oil prices owing to imbalance in oil supply.
Source: Korea
Strengths
No future expenditure in electricity
Environment-friendly
Weaknesses
High initial cost of solar panels
Low efficiency of solar energy,
compared to other sources
Opportunities
Technology development can
improve efficiency of solar energy
Threats
Preference for current resources of
electricity over solar energy
The emergence of
1. Justifications of the proposed schemes -the structural problem& the chemical injection locations
2. Design impeller and tank type affecting energy efficiency, cost, flocculation size. Design Diffuser Walls and Baffles used for Minimizing Short Circuiting
3. Design launder type, structure, sludge and scum model
Filtration의 세번째 key concept 이유: (to promote readily biodegradabl
Overview
-R.O membrane type (Bang, junho)
-Property, affecting factor (Park, minoh)
-State of the art R.O membrane (Yoon, sehyun)
Advantages & Disadvantages
Stable performance in applications
Relatively low cost
Narrow operating pH range
Susceptibility to biological attack
Structural compaction
Under high pressure and low upper temperature limit
Advantages & Disadvantage
a cylinder
The Near-InfraRed (NIR) photoluminescence of semiconducting SWNT
Low autofluorescence in the NIR range
Large Stokes shift between the excitation and emission
Energy shift of SWNT
Generated by using literature value.
Using constant dielectric value in Bethe-salpeter equation generate horizontal line.
Model is able to predict magnitude of the energy shift.
Low Popularity of Underclothes
Here comes a problem—although underclothes offer a number of benefits and owns two evident merits- keeping warm and saving energy, the sales of underclothes is not so satisfying. So we need to see another point of the consumer market. According to the interview and questionnaire, it is not difficult to find that there is a common prejudice about wearing under
Abstract
High price of main grains is recent issue in the global market. International price of main grains has risen since 2007. High price of main grain becomes serious problem not regionally but in global. Then policy for stabilizing the situation will be dealt with in this paper. On the supply side, low stocks of world grains affect to world grain prices. Escalating energy prices is also ca
important.
Skipping meal will effect the development of body because of lack of nutrients. Minerals, proteins and vitamins are the easy nutrients to be lack of.
If the nutrient is over consumed the body fat will accumulate under skin and will lead to obesity.
Eating a lot is not always good!
Maintaining the weight by consuming low calories and try to exercise and increase the energy uses.