3.2. PM(Preventive Maintenance)
3.2.1. What is the PM?
"Preventive Maintenance is a scheduled program of regular inspection, adjustments, lubrication, or replacement of warm or failing parts in order to maintain an asset's function, and efficiency (Ryan Cruzan, 2009)
Preventive Maintenance is the task that we perform to keep buildings in good condition. So Preventive Maintenance includes task
preventive maintenance
Steady-state availability with and without preventive maintenance
Steady-state busy period with and without preventive maintenance
Profit analysis in steady-state with and without preventive maintenance
Assumptions
The system consists of two-dissimilar units, one is main and the other is its standby
- Initially one unit is operative and the other unit is kept a
3. Positive effect of CCTV
(1) Crime Prevention and Detection
a. Sungnyemun fire Case
February 11, 2008, Koreans witnessed in shock the transformation of one of the country's best-known landmarks which guarded the capital for 600 years into a pile of smoldering ashes in the span of just a few hours. A 70-year-old man angry over a compensation payment for his house had set fire to Sungnyemun
2. purpose of CCTV
The purpose of CCTV
CCTV is classified as two main purposes. One is for administrative purposes Transportation. Prevention is often seen speeding on the road unattended cameras are it. This type of CCTV is the administrative purpose of Multidisciplinary. In other words, to prevent the future for preventive purposes will be strong. However, CCTV is a problem with the Crime
Ⅰ. 서론
도시의 생산활동, 사람, 하부구조가 밀집된 건조 환경의 집합처이다. 공간적 근접성은 접근을 높여서, 다양한 판매자와 구매자의 범위를 넓히며, 비교를 쉽게 하며, 정보를 모으게 한다. 이 곳에서 시장조건을 아는 상인들은 서로간의 신뢰를 형성한다. 또한 이동의 비용과 노력을 감소시키