■ Objectives of Defense-in-Depth
• To compensate for potential human and component
failures
• To maintain the effectiveness of the barriers by averting
damage to the facilities and to the barriers themselves
• To protect the public and the environment from harm in
the event that those barriers are not fully effective
■ Strategy of
1. 전기자동차 배터리의 역사
자동차 배터리의 역사는 비록 배터리의 역사의 비해서 길지는 않지만 많은 발전을 겪어왔다. 1832년 스코틀랜드 발명가인 Robert Anderson이 처음으로 자동차 배터리를 개발 하였으나, 이 배터리의 경우는 충전이 불가능 하였다. 이후 1859년 개발된 납-산 배터리의 경우는 충전
reactors that are designed to withstand very high pressures (up to one thousand atmospheres) and high temperatures (about 700°C or 1300°F). The reactors also resist attack by hydrogen gases which can corrode many metals, especially at high temperature and pressure. The catalyst in commercial ammonia synthesis is usually an iron oxide mixed with a small amount of additional "promoter" material.
1. Introduction
Energy is the crucial factor to the development in most industrial area and we have to supply it from various resources using technical methods. As we have entered in the 21th century, it becomes one of the most important missions to replace original energy with new energy to last current development long. Economically, because the original energy resources like coal, petroleu