P u r p o s e
To understand XRD and analysis JCPDS card, we analyzed and studied the figure of XRD and did research and discuss background knowledge. Also we expect that we can find important information of XRD by doing experiment
Process of experiment
XRD is equipment that use characteristic X-rays. Through characteristic X-rays diffraction peak of material, we can examine closely unk
3. Experiment Method
A measurement method of sample of powder form is an x-ray diffractometor(Fig. 9).
Fig. 9. An x-ray diffractometer.
3.1. Making of Sample Powder
A Sample is made a powder form. A diameter of powder has good reproducibility as smaller. But generally 10~35μm is a suitable size of sample. We must caution a deterioration by air, gas, humidity and pouri
so the error can be occur
- The thickness of the specimen may differ from figures given to us.
- Discontinuity in the interior of the specimen and coarse particles such as microscopic defects can be causing of the error
- If the probes isn't completely stick to specimen, due to defect of couplement, the error must be occur
errors. Finally she gets crash-shutters
open to reveal...
CLOUD STRATA sweeping up past the windscreen like floor-lights
on a dropping elevator. Were shedding big altitude.
INT. NAV-BAY - MAIN CABIN
OWENS
... crisis program selected Number Two of
this system because it shows at least some
oxygen and more than 1,500 -- would you
SHUT THE FUCK UP!
(hammers a button,
SILENCES ALARMS)
-- more than 1,
시간과 공간에 따라 급격하게 변화하는 난류유동에 적용하기 위해서는 계측오차가 적고 효율적인 속도취득algorithm의 개발과 더불어 난류 통계치를 구하는 데 들어가는 계산시간을 줄이려는 노력이 필요하다. 속도장 계측 결과에 들어 있는 error vector elimination routine도 속도벡터 추출과정에 포함된다.
고체로, 주로 hydrated silica 또는 alumina particle처럼 극성을 띤 것을 사용하며, 이동상은 액체 혹은 기체이다. 용질은 고체 입자들의 표면에 흡착되고, 용질이 더 강하게 흡착될수록 용질은 칼럼을 더 천천히 빠져나가게 되는데, 이 때 흡착 정도는 극 성에 따라 달라지며, 이동상과 경쟁하게 된다.
error)에 의해 생기는 것이 대부분이나, DNA 염기의 구조를 변화시키는 화학물질이나 방사선(radiation) 조사에 의해서도 발생 되는데 이와 같이 외부 환경에 의해 유전자의 돌연변이가 나타나는 현상을 DNA 손상(DNA damage) 이라고 한다.
DNA 손상에 의한 돌연변이는 세포에 존재하는 DNA 수선(DNA repair) 효소에 의
◆ Modern Society and Web 2.0
Web 1.0 era as the word of "sea of information", we are exposed to a lot of information. Regardless of distance and time, we can easily send information as well as our own private information. Also, the amount of data, in 1989, the European Particle Physics in Switzerland, developed hypertext and MOSAIC invented first web browser in 1993. Those changes helped to
particles that can carry the drug molecules to the target safely.
5.2.2 Nanocarriers - Nanoparticles
Before starting with the functionalization of nanoparticles, it is important to keep in mind a range of useful properties we wish to have in any drug delivery across the BBB(Blood brain barrier). In this context, owing to their small size, customizable surface, improved solubility, targete
Electrodepostion is a process that
colloidal particles suspended in a liquid medium
migrate under the influence of an electric field
and are deposited onto an electrode !
“We can make better capacitor by
Improving quality of nanowires
Made from SLS mechanism”
1. Make template(Anodic Aluminium Oxide – AAO method)
2. Fill the catalyst in the