1. Pump에서의 Cavitation (공동현상) 에 대하여 기술하고 이로 생길 수 있는 문제점과 그 방지책에 대해 논하시오
- Cavitation이란
유체가 넓은 유로에서 좁을 곳으로 고속 유입하거나 벽면의 요철, 만곡부 등으로 흐름이 직선적이지 못할 때 유체는 저압이 되고 포화증기압보다 낮아지면 기화되어 기포가
market, we, 美ME+ also is looking to expand our business.
This report is divided into two parts, the first half; we will talk about the Japanese market as a whole cultural risk, country risk, and currency risk. And in the later half; we will analysis the cosmetics market in Japan, and describe our company’s market strategy. After that, we will predict future prospects of our company.
5. History of US-Korea FTA
Although the treaty was signed on June 30, 2007, ratification of the agreement stalled when President George W. Bush's fast-track trade authority expired and a Democrat-controlled U.S. Congress expressed objections to the treaty related to concerns over bilateral trade in automobiles and U.S. beef exports. Nearly three years later, on June 26, 2010, President Barack Ob
The atmosphere shields us from the sun's cancer-causing ultraviolet (UV) radiation and also moderates the earth's climate.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere is obviously vital for human existence, but we have nevertheless been polluting it for years.
The atmosphere can be divided vertically into four m
the short
length of the fins laterally, rather than longitudinally down
the long length.
Focused on placing the jets at the end of the fins and using them to induce air flow longitudinally down the length of the fin
The primary jet to emanate directly through the heat sink base and entrain and expel air laterally over the height of the fins through a matrix of synthetic jets