Abstract
Bioethanol is one of the alternative sources of oil resources which received attention with biodiesel. Many countries produce bioethanol from food sources such as corn and sugarcane, but it causes food-energy conflicts and farmland problem. So it needs to focus on new biomass which is sustainable, renewable, cost-effective and do not occurred any conflicts. Algae are one of the bioma
Shortcomings of current process
1. Activated carbon adsorption
2. Direct combustion
3. Catalytic oxidation
4. Ozone oxidation
1. Inconsistent efficiency
Efficiency sharply drops when it works for long time.
It happens as nutrients for microorganisms are insufficient.
2. Unequal growth of microorganisms
Efficiency decreases, hard to handle when factors change suddenly
mechanisms of toxic agent actions
개인마다 다른물질과의 상호작용 때문에 몸에 해를 끼치는 독소의 양은 다름
But complex interactions; useful for comparative studies of the effects of harmful agents for specific population and for estimating risk of disease in heavily exposed individuals.
Poison : 물질의 종류, 물질의 양에따라
Chemicals may be excr
1. Uptake Hydrogenase
1) Definition of Uptake Hydrogenase and Mechanism of Hydrogen Production
Uptake hydrogenases are Ni-Fe enzymes that catalyze the conversion of hydrogen gas to hydrogen ions and electrons. They are found in the heterocysts and not in the vegetative cells of nitrogen-fixing strains of cyanobacteria. They remove the hydrogen gas produced by nitrogenase when they carry o
The luminol is activated with an oxidant. Hydrogen peroxide solution and sodium hydroxide is
used as the activator. In the presence of an catalyst, the hydrogen peroxide is decomposed to form
oxygen and water. The iron in potassium ferricyanide is a catalyst for the reaction.
When luminol reacts with the sodium hydroxide, a dianion is formed. The oxygen produced from
the hydrogen peroxi
◎ Step2. Define the stakeholders
- ITT: For their profits, they drew in U.S.A government and CIA. And also they supported the opposite political force of Allende. They incited coup. It caused a lot of damages in Chile.
- The government of U.S.A. & CIA: They dragged Allende out of his position and helped the opposite political force of Allende to built pro-American government in Chile. An
Air pollution Cost for road transportation is 3,067 won/TEU-km??
ONLY 200 won/TEU-km!!
What about CO2 Exhaustion?
85.9 g / ton km >35.6 g / ton km
It is necessary to reduce greenhouse gas exhaustion quantity due to Kyoto protocol.
Canal transportation exhausts much less gas compared to that of road transportation.
Ⅰ. 들어가는 글
1960년대까지만 하더라도 우리 나라는 물 좋다고 세계에 자랑하던 나라였다. 어디서나 깨끗하고 맛 좋은 물을 마실 수 있었고 어느 개울에서나 멱을 감을 수가 있었다. 그러던 것이 지금은 많은 개울과 강들이 하수도처럼 변했고 대부분의 국민들이 수돗물을 안심하고 마시지 못할 정
1.1 Coulometric titration
1.1.1 Coulometry
전기분해 시에 발생한 전하량을 통해 특정 물질의 양을 결정하는 분석 방법 중 하나이다. 전위를 일정하게 유지하며 행하는 정전위(constant-potential) 방식과 전류를 일정하게 유지하며 행하는 정전류(constant-current) 방식이 있으며, 전자의 경우에 일반적으로 전량계를 이
서론
자연은 인간이 의도하지 않아도 본래 아름다움을 가지며 스스로 새로움을 창조하고, 무질서 속에서 질서와 조화를 이루며 인간과 상호보완적인 조화의 관계를 유지하여 왔다. 그러나 인간의 욕망이 점차 증대하고, 진보하기 위해서는 그 자원이 되는 자연에서 물질적인 발달을 꾀해야 한다는