FE-SEM images of all the samples. For all the samples, the columnar shaped ZnO grains grown normal to the substrate surface are clearly seen. When MZO and GZO films are deposited after ZnO films, it seems that similar columnar shaped grains are formed. It can indicate if the same conditions are preserved, all films can be grownvertically. It is very similar patterns reported in literature [1].
1. Purpose of experiment
포토리소그래피(Photolithography)는 원하는 회로설계를 유리판 위에 금속패턴으로 만들어 놓은 마스크(mask)라는 원판에 빛을 쬐어 생기는 그림자를 웨이퍼 상에 전사시켜 복사하는 기술이며, 반도체의 제조 공정에서 설계된 패턴을 웨이퍼 상에 형성하는 가장 중요한 공정이다. 실험을
Introduction
Problems of YAG
Difficult to control CRI
Wavelength between blue light and yellow light
The samples were ground with an agate mortar, then fired at 1550 ℃ for 10hours.
Result Analysis
Intensity according to fraction of Ce3+ ion : 0.15 > 0.21 > 0.09 > 0.03
Intensity is largest at 0.15. Why?
* Concentration Quenching :
Too much activator concentration
->Reab
Abstract
실험에 사용되는 암세포(A 549)의 medium제조 와 Cell-thawing, Cell-culture의 실험방법에 대해서 알아보았다. 암세포를 배양할 때는 몸 안에 있을 때와 비슷하게 적절한 환경을 만들어 주어야한다. 암세포가 몸 안에서는 면역에 의해 균이 없는 상태에서 죽지 않고 자라지만 체외로 노출된 상태이므로
To understand the principle of laboratory distillation
To separate a binary mixture with different boiling points through fractional distillation
Practice the application of distillation devices
Measure the efficiency of distillation column
Calculate the minimum ideal plates
Superheated vapor feed(q<0)
Saturated vapor feed(q=0)
Partially vaporized feed(q=0.5)
Saturated liquid
Significantly higher surface area and much narrower pore size distribution in the mesopore region
A large amount of amine-type CO2 capturing agent into its mesopores in a well dispersed manner
Synthesis of MA
PEI impregnation on MA
Amine grafting on MCM-41
Characterization of the materials prepared
CO2 adsorption-desorption measurement
Al(i-PrO)3 (41.68g)+ Alcohol solvent
2.본론
2-1. 현미경이란
현미경의 정의는 사람의 눈으로 관찰이 불가능한 미세한 물일이나 기타샘플을 광학 렌즈와 적당한 빛을 이용하여 자신이 원하는 크기로 확대시켜주는 것을 의미한다.
예전부터 눈으로 볼 수 있는 것보다 더 작은 것을 보고자 한 인류는 16세기에 이르러 확대경을 만들게 되었으
Examination of the microstructural image of a specimen magnified by a reflected light microscope from 50x to 1000x in air( or up to 2000x with oil immersion).
Features of metallurgical specimens such as grains, gbs, cracks, ppts can be distinguished because they differ in contrast, caused by the differences in (a) the amount of light absorbed and (b) the inclination of those atomic planes that
experiment may have half a callus undergo a treatment as the experimental group, while the other half undergoes a similar but non-active treatment as the control group.
Plant cell calluses may be made to differentiate into the specialized tissues of a whole plant, with the addition of a number of hormones or enzymes. This is an ability known as totipotency.
A callus is often the target of a gen