The protection of global resources is controversial because the development of an advanced industrial society involves the exploitation of natural resources to produce goods and services for world market.
-So, how can we balance the resource needs of industrial society with the natural environment?
Authoritative Body
They could create an authoritative body to regulate the commons
How
1.2. 재료가 사용된 이유
투명 전도막(TCO : Transparent Conductive Oxide)이란, 가시광 영역에서 광 투과율이 우수해야 하고, 높은 전기전도도와 적절한 에칭 특성을 지녀야 한다. ITO는 가시광선 영역 (400nm ~ 700nm)에서 80%정도의 투과도를 가지며 optical band gap이 3.55eV를 가짐으로 인하여 가시광선 영역에서 높은
1. The Necessity of the Study
Natural Disasters in Korea on the Rise
Korea never safe from natural disasters such as a typhoon and an
earthquake
Typhoon
"Rusa“(2002) and "Maemi“(2003) property damage by 4 trillion won
-hundred thousand victims.
Earthquake
-16 from 1978 to 1996
-41 from 1997 to 2010
The Lack of Supply of
Temporary
7.2 Method
7.2.1 Physical Method - Distillation
7.2.1-1. Distillation
증류에 의하여 원유를 구성하고 있는 탄화수소를 그 비등점에 따라 분류하는 공정으로,
보통 우리가 알고 있는 정유공장에서 수행하는 기본적인 공정으로 원유를 처리할 수 있는
모든 공장에서 수행할 수 있는 공정이라고 생각하면 된다.
1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
High-temperature decomposition
High-temperature splitting of water occurs at about 3000 °C. At this temperature, 10% of the water is decomposed and the remaining 90% can be recycled. To reduce the temperature, other processes for high temperature splitting of water have been suggested:
▸Thermo-chemical cycles.
▸Hybrid systems coupling thermal decomposition and electrolytic
temperatures. As products, we could obtain char, oil and gas. Higher reaction temperature favored for the production of gas and around 500℃, the production of bio-oil was optimized. When smaller size feed applied, more oil and less char was obtained. Gas analysis resulted that fast pyrolysis could reduce 80% CO2 ,compared with combustion.
1. 서론
화석연료의 고갈로 인해 국제
We can’t live without energy and most of that energy comes from fossil fuels like petroleum, coal, and natural gas. It is well known that human activities, such as burning fossil fuels, cause global warming, increasing the overall temperatures of the earth. Other than environmental concerns, fossil fuels are becoming more expensive and will eventually run out. So, we need to find ‘alternative
ammonia. In principle the chemistry of ammonia synthesis was simple but the execution was difficult because high temperatures and very high pressures were needed to produce enough quantities of ammonia to make the process economical. Habersucceeded in developing an ammonia synthesis process that worked in the laboratory in 1909. Initially, Haber used osmium or uranium as a catalyst to speed up
been moved from one triglyceride molecule to another.
But To Interesterification, Randomness is desired.
Interesterification has become the alternative fat
modification technology to Partial hydrogenation
Past : Chemical interesterification for commodity fat blends
Enzymatic for ‘specialty’ fats (SUS fats)
Today : Cost-effective enzymatic IE for commodity fats