Ⅰ. X선(엑스선)회절실험 소개
1912년 X-선의 파장을 측정하는 방법이 개발되었다. 회절을 이용한 측정법이 가장 이상적인 것으로 생각되었으나 만족할 만한 결과를 얻기 위해서는 회절격자의 인접선 사이의 간격이 빛의 파장과 거의 같아야 하며, 이와 같이 X-선의 파장에 대응되는 좁은 간격의 회절격
이번 실험은 spectrofluorometer를 이용하여 250nm, 350nm에서 빛을 흡수하고 450nm에서 fluorescence를 방출하는 quinine에 대한 spectrum을 얻어 fluorescence spectroscopy로 unknown quinine의 농도를 결정하고, 특정 조건에 따른 quinine의 quenching을 확인해 보는 데에 목적이 있다. 농도 결정 실험에서 solvent가 0.05M H2SO4(aq)인 quinine sta
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
Scattering)가 있고 둘째는 구조물의 자체 진동에 의한 음의 전파현상과 구조물내부에 회전체와 같은 음원이 존재하는 경우에 음의 전파를 관측하는 방사문제(Radiation)가 있다. 실제로 산업용 터빈이나 비행기 엔진 흡입구에서 발생되는 소음, 또는 자동 차의 배기구를 통해 발생되는 소음 그리고 엔진의
scatter)
①피사체 대조도
피사체 대조도란?
피사체인 두 물질을 투과한 x선의 강도차이가 발생하고 이 차이로 인하여 대조도가 형성된것.
피사체 대조도는 환자에 의한 x선 감약현상으로 발생하며 피사체의 1)두께 2)밀도 3)원자번호의 차이와 4)방사선의 질(kvp)에 따라 영향을 받음.
균등한 X선이 동일 두
The Universe and Dr.Einstein
Content
1. Preface(머리말)
2.1. Birth and Death Albert Einstein
2.2. The electromagnetic spectrum reveals the narrow range of radiation visible to mans eye
2.3. The photoelectric effect was interpreted by Einstein
2.4. The Einstein of Quantum Theory
2.5. Did you know... Brownian Motion
2.6. Theoretical for Special Relativity
2.6.1. Theoretical Basis for Special
scattering into the jungle. More AMERICANS appear; unexplainably, out of the growth. It is now that we fully SEE the bizarre manner in which they are dressed. Some wear helmets, others wear strange hats made from feathers and parts of animals. Some of them have long savage-looking hair; other crew-cut or completely shaved; they wear bandoliers, flak jackets, shorts and little else. They wear Mont
RADIATION WILL REACH AUSTRALIA.
THE ATOMIC WAR HAS ENDED, BUT THE PRIME MINISTER REPORTS...
NO PROOF OF SURVIVAL OF HUMAN LIFE ANYWHERE EXCEPT HERE.
[ Turns Off Radio ] NAVY DEPARTMENT.
[ Baby Crying ]
[ Crying Continues ]
[ Baby Cooing ]
[ Cooing Continues ]
[ Cooing Continues ]
[ Baby Fussing, Quiets ]
CONGRATULATIONS.
[ Taps Spoon On Cup ] TEA, DEAR.
I SAID, "TEA, DEAR."
GOT A BIT
SEDAN fishtails into a parked Toyota. Utah bounces
forward, slamming into the asphalt. Glass shards and
crushed steel are strewn everywhere, as radiator steam
whistles hot.
Pig Nose #2, riding shotgun, is trapped. Cant get his
crushed door open. The DRIVER pushes open her door.
Gropes for her pistol. Utah springs -- no respect for a
lady. He slams the door, pins her arm and slams again and
scatters the
bills across the bow and all the men, including Captain Franco,
scramble for the money, chattering in Portuguese. While they are
occupied, Whittlesley slips by unnoticed and disappears below deck.
INT. HOLD - SANTA LUCIA - NIGHT
Whittlesley ducks between cages of goats, boxes of farm equipment, his
movements jerky with panic. As he continues searching, the camera
moves past him, into