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
Resistance... John
Conner. My son. *
The first terminator was programmed to strike * at me, in the year
1984... before John was born. * It failed. *
TERMINATOR 2 - Rev. 9/10/90 3
6 VOICE (SARA CONNER) 6* The second was set to strike at John himself,
* when he was still a child. As before, the * Resistance was able
to send a lone warrior. A * protector for John. It was just a
question of * which o
DR. BURTON, the Chief Psychiatrist moves down the old hallway, face tense. He steps through a doorway into...
INT. MAXIMUM SECURITY - NIGHT
Security cells. Criminal maniacs sealed behind protective casings.
A GUARD stands before a heavy door.
GUARD
Hell of a night, huh Doc?
BURTON
Hells in here.
Hydraulics HISS. The cell door unseals.
INT. SECURE ISOLATION CELL
Hydraulic failure.
Planes are not responding, sir!
Power returns in time for the sonarman to get a glimpse at the side-scan
display... AS THE SHEER CLIFF WALL LOOM BEFORE THEM.
HELMSMAN
Hydraulics restored, sir.
EXT. U.S.S. MONTANA 7
The cliff wall materializes out of the blue limbo off the port bow with
nightmarish slow-motion. The sub slams into it with horrific force, scraping
along and bounci
PFCs(Perfluorinated Chemicals)
Manmade chemicals, synthetic
Resistant to heat, water, oil, grease & stains
Stable, extremely resistant to breakdown
Widely used in diverse applications
Economically useful
Electronegativity of Fluorine
Partial charges in the polarized C-F bond
C-F bond
: strongest bond in
organic chemistry
: high energy bond
Two most studied compounds
Section 001 선박의 종류 및 선형계수
1. 선박의 종류
(1) 상선
- 여객선(Passenger ship) : 선박 안전법에 의하면 13명 이상의 여객을 수송하는 배. 여
객의 안전과 분위기 조성을 위해 구명 설비 등 여러 장치가 완비되어있으며 객실이 흘수
선보다 위에 위치하여 상부구조가 크다. - 객화선(Passenger and Cargo s
Bacteriophage는 숙주 세포의 핵산, 뉴클레오타이드, 리보솜 등의 물질을 자원으로 삼아 자신의 유전물질을 복제하여 증식한다. 세포가 분열하기 전에는 유전물질과 그 외의 세포를 구성하는 다양한 물질들의 양이 증가하기 때문에 generation time이 짧은 세포를 숙주로 삼을수록 bacteriophage와 같은 바이러스가
The World Is Not Enough
GUN BARREL LOGO OPENS ON
GENEVA SWITZERLAND, an unnaturally clean city that melds old
Europe with new money of both dubious and legitimate source.
INT. HALLWAY OFFICE BUILDING - DAY
An engraved brass plaque announcing the name of the 몷private
banking institute몸 within.
INT. PENTHOUSE BANK OFFICE - GENEVA - DAY
JAMES BOND, dressed impeccably as ever, is being FRISKED by
We are moving through a small airfield full of parked light planes. There are no people around. We move through the cluster of planes towards a hangar on the edge of the field.
INT. HANGAR - DAY
We are still moving through light planes, but now we are inside the hangar. Some of the planes have their engine covers open, parts strewn around. Others are partially covered with tarps or have sections