has more strong light intensity than single chip WLED, but process is too complicate and not cost effective. And electron transfer is slow caused by 2-dimensional chip.
2. RGB-LED Nano Wire ??
Existed RGB-LED structure is 3-chip structure(emit red, green, blue) and mixture structure that constructed with One single chip(emit blue light) and different size quantum dots(emit light by
NG Emission (Noxious Gas emission)
Produced by navigation
result from the combustion of fuel
The principal pollutants :
1) soot
2) particulate matter (PM), sulfur-rich fuels
The effect of NG emission
Local & Regional effect
Acid rain
Photochemical smog
human health (respiratory, asthma)
Global Effect
NG Regulat
2. 대기오염으로 인한 피해
대기오염과 연관된 대표적인 급성 피해 사례로 1952년 런던에서는 4000여명이 초과로 사망하였다. 이러한 초과 사망은 주로 기존의 심장질환 및 호흡기질환이 있던 사람들에게서 발생되었으며, 주로 기관지염, 폐렴, 다른 심장질환 및 호흡기질환에 의한 것이다. 대기오염으
Water stress results from an imbalance between water use and water resources. The water stress indicator in this map measures the proportion of water withdrawal with respect to total renewable resources. It is a criticality ratio, which implies that water stress depends on the variability of resources. Water stress causes deterioration of fresh water resources in terms of quantity (aquifer over-e
Advantages of CRT
Color
Most are capable of displaying unlimited colors.
High color fidelity and contrast
Resolution
Better resolution with moving images
Response Time
Faster response time. Critical to people who watch videos or play games on their PC’s.
The fastest LCD’s offer a response time of about 25 milliseconds as apposed to CRT’s that have a response time of about 13 m