the main culprit of air pollution, but people are beginning to understand the diesel car in a different way. The clean diesel engine has a mechanism of compressed air and blast, and it enables the engine to generate the same power as gasoline engine with 30-40% less fuel. It is recognized as an environmentally-friendly car in Europe and is even being referred to as having a ‘Green Engine’. A
First Aid (Nexcare™)
Fly Fishing (Scientific Anglers™)
Health & Personal Care
Home Improvement & Repair
Hooks & Mounting (Command™ Adhesives)
Insulation for Apparel (Thinsulate™)
Personal Safety & Comfort
Pet Care
Post-it® Products
Reflective Material (Scotchlite™)
Scrapbooking & Crafts
Sports & Outdoors
Tapes for Home Use
3M Brand line-up
1. 기존 PLANT 내의 제어실에 새로운 CONTROL SYSTEM 을 설치하고 기존 CONTROL SYSTEM 과의 DATA COMMUNICATION을 하려고 한다. 이때 고려해야할 사항을 설명하시오. 또한, OSI (Open System Interconnection) 7 Layer 에 대해 설명하고 TCP/IP 4계층과 비교 및 적용되는 Protocol의 예를 드시오.
① 이기종간의 제어시스템간의 데이타
line software store for Android devices. The “Market” which refers to an application program is preinstalled on Android devices and it allows Android users to download applications. A number of such applications are developed by third-party developers. The Android Market currently contains tens of thousands of applications, being frequently updated.
In addition, Android provides free acc
흐르는 현상. 이러한 현상으로 인하여 많은 전류의 손실이 생기게 된다.
라는 현상 때문에 일반 도체 Wire를 쓸 수 없게 됩니다. 따라서 마이크로파 영역의 주파수를 다루는 회로에는 일반 Transmission Line이 아닌 특수한 Transmission Line이 쓰이게 되는데, 이러한 Transmission Line을 “Microstrip Line”이라고 한다.
Lines and Cables
- 유중 성분 분석
유중가스 분석에 의한 OF 케이블 선로의 접속부 진단은 옛날부터 그 효과가 인정되어 많은 실적을 올리고 있다. 채유 작업은 지금까지 안전적인 측면 때문에 케이블 선로 운전을 정지한 상태(오프라인)로 실행되는 것이 일반적이었다. 그러나 최근에는 절연 성능을 가진
Constructed Air hub in Louisville.
In 1989, Start worldwide Express Service.
In 1992, Develop the Electronic tracking system.
In 2012, Receive limited domestic delivery licenses in China
Triple bottom line
-The triple bottom line captures an expanded spectrum of values and criteria for measuring organizational success: economic, ecological, and social.
-UPS’s industry le
Brief Intro : Intel
The leader in the semiconductor industry is unquestionably Intel. Following Intel’s lead are AMD, Cyrix, Digital, Motorola, etc. in CPU manufacturing. Intel has abandoned memory division back in 1985 as the Japanese firms became more competitive and gained chunk of the world market share. From then on Intel has concentrated on developing microprocessors along with other p
We are living in the age which is considered greenhouse effect to reduced
Therefore, many other countries effort to reduce greenhouse gas and Our country do same things. At 2007s Total greenhouse gas emission, about 41% of emissions are associated with electrical efficiency lose.
This shows why smart grid is important to reduced greenhouse gas.
The old electrical net type is just one-way sys
What is Wireless?
Electromagnetic waves rather than some form of wire or cable
Enable individuals to conduct mobile computing
Wireless – No Wire
Mobile – Changes its location over time
Advantages:
Small enough
Sufficient computing power
Communicative wirelessly