Ⅰ. Definition of some terms which will be used and concepts of marketing
1. What is the marketing?
-Many people regard the marketing as sales or advertisement. This is not wrong, but it is a little bit insufficient to understand the marketing wholly. In the marketing, ‘market’ means customers or consumers who buy some products in the market. It is the first step for comprehending the m
Ⅰ. Definition of some terms which will be used and concepts of marketing
1. What is the marketing?
-Many people regard the marketing as sales or advertisement. This is not wrong, but it is a little bit insufficient to understand the marketing wholly. In the marketing, ‘market’ means customers or consumers who buy some products in the market. It is the first step for comprehending the m
II. How is CBM formed
Coalbed methane (CH4) forms in one of two ways. During the earliest stage of coalification (the process that turns plant detritus into coal), biogenic methane is generated as a by-product of bacterial respiration. Aerobic bacteria (those that use oxygen in respiration) first metabolize any free oxygen left in the plant remains and the surrounding sediments. In fresh water
가지 않도록 하는 보행기
간단한 짐을 편하게 싫을 수 있는 디자인
속도가 어느 정도 조절 가능
미끄러지지 않아 위험성이 적은 것
정지할 때 언덕에서도 정차 가능
성별에 제약 없이 사용 가능
-Portable
-Adjustment
-Performance
-Economy
-Ergonomic (Adjustment)
-Adjustment
-Performance
-Performance
-Flexible
1. 서론
최근 반도체칩의 집적도는 무어의 법칙 (Moore's Law)를 넘어서 지난 26년간 용량은 3200배 정도로 증가했다. 다시 말해 고(高)메모리의 수요가 증가함에 따라 반도체 디바이스의 집적화가 요구되고 이른바 ‘나노 시대’가 도래하였다. 기존의 리소그래피(Lithography) 기술은 나노 사이즈의 패턴을