1.1.3. Prevent Vibration in Ships
선박에서의 주요 진동 문제는 main engine 및 프로펠러에 의해 발생된다. 프로펠러에 의한 exciting force는 surface force나 bearing force, thrust force를 발생시키며, 발생된 force들은 hull girder 진동을 일으킨다.
다른 종류의 진동으로는 wave force로 인한 whipping 및 springing이 있으며, 다음 장
우주개발은 결코 우리가 감당하기 어려울 만큼 큰 투자가 요구되는 분야가 아니며 또한 선진국의 전유물로 방치해서도 안 될 분야이다. 우주개발은 기술측면에서 정보화시대의 핵심기술인 통신기술과 컴퓨터 기술에 직결되고 있으며 산업측면에서도 작년 제 2이동통신 사업선정에서 나타나듯이 ꡒ
Vibrating Shank Plows", which was held in 1963.
In 1950, William T. Graham invented a device which was a combination of old mechanical elements: a device designed to absorb shock from the shanks of chisel plows as they plow through rocky soil and, thus, prevent damage to the plow.
Patent No. 2,493,811
Graham sought to solve this problem by attaching the plow shanks to spring clamps to
The earthquake is one of the issues that we have to notice in this year. Because the earthquake has happened since last year. Even if most of them were just an aftershock, we were not used to the earthquake so people are frightened about it. In addition, the rumor that after few small shocks, there must be a big earthquake makes people feel more fearful. As the earthquake becomes an issue, people
shock absorber) 및 단열(insulator)제로서 열 손실을 방지하여 준다.
2. 표피 (epidermis)
중층편평상피 (stratified squamous epithelium)로 4 종류의 세포와 4~5층의 구조로 구성되어 있다. 전신의 피부중 발바닥 및 손바닥이 1.5 mm로 가장 두꺼운 부위이다.
1) 표피 세포(cells of the epidermis)
표피를 구성하는 세포는 ker
vibrates through the cabin.
The boys eyes snap open.
Jacob glances around nervously. He looks like an escaped
convict who just accidentally walked into the Policemens
Ball. A GREYHAIRED MAN two seats away from him gives the
teenager a cursory glance, then goes back to his book. Jacob
lays his head back and tries to relax. The engines continue
to drone.
Until a new noise starts. A WHOOSHING N
SHOCK -
BOND LOSES HIS GRIP ON THE FIRST ICE PICK -
And 007 is now dangling, 575 feet in the air, staring at a torrent of
water - hanging only by the leather thread around his wrist, attached
to the first ice-pick, still embedded in the wall.
Bond pauses. Thinks. And coolly begins to swing himself back and
forth, in widening arcs, like a clocks pendulum.
At the high point of his swing, Bond reach
than that.
They are Mormon missionaries, swear to God.
Oh. Although rodeo clowns
wouldve been kinda cool.
They mustve loved your aberrant
lifestyle. I dated a Mormon guy once.
His family put him through shock
therapy. We have sex, he was a wild man.
Then he wanna throw
himself out the window.
So, you live on the first floor.
Yes, but its hell on my azaleas
Now, wouldnt it be funny if you con
shocked recognition crossing his
face.
BRAINIAC
My days of scavenging are over, L-Ron.
Lock onto this transmission and follow it
to this Earth his speaks of.
L-RON
What for?
BRAINIAC
Jor-Els most accomplished creation,
L-Ron -- the Eradicator still exists!
Brainiacs eyes glow with intrigue. L-Ron shrugs and begins
entering coordinates. Lexs message continues onscreen.
LEX (V.O.)
From one superior
They all wear the same ring.
AARON
(taps his chest lightly)
Her vibrations were unmistakable. I felt them quite clearly.
(sighs)
Strange to think after thirty years...I shall walk by the porch
and find the chair empty.
WOMAN AT THE TABLE
What of the child, Aaron...?
AARON
The childs life will take its inevitable turn. (pause) we
will watch and wait... and soon - our waiting will be over
INT