For comparative purposes the corresponding peak-to-background ratios were: 4.4, 7.1 and 7.9 for 5kV, 10kV and 15kV, respectively. In addition to Nb, other elemental peaks could be detected from the surrounding materials. The Al and Si peaks were generated from the holder (the O peak was visible due to oxidation of the holder itself), the Ni peak originated from the sample grid and the extraction
3) The superiority of Ti plate as the substrate of dye-sensitized solar cells
This figure is light irradiation in DSSC's based on (a) metal substrate(Ti, stainless steel) and (b) FTO substrate. In this paper, nano crystalline TiO2 coated on FTO, Ti and stainless steel substrated was applied as a photoelectrode of DSSCs.
In conclusion, the sheet resistance of metal substrate seems to be const
CTAB의 경우
: 입자의 크기가 크고 구형을 띈다.
DTAB의 경우
: 표면이 거칠고 입자의 크기가 CTAB에 비해 작다. CTAB의 입자가 구형인 것에 비하면 울퉁불퉁하다.
이번 실험의 경우 SEM의 배율이 2배밖에 되지 않아서 정확하게 비교가 힘들고 동일한 조건 하에서 DTAB은 CTAB보다 결정화가 이루어지지 않으
전완부위 골절 시 증상과 응급처치
1. 골절의 증상
① 변형(deformity) : 사지가 본래의 위치에 있지 못하거나 골 길이의 단축, 각 변형, 회전 변형초래.
② 압통(tenderness) : 국소압통이라고도 하며 골절의 존재를 파악하는데 가장 좋은 지표.
③ 사지운동 제한-방어(inability to use the extremity-guarding) : 손상
Objection
Metals, ceramics, polymers that represent material engineering can find easily in our real life. Compare corrosion degree in case of uncovered in same corrosion environment and corrosion difference inquires happened reason.
Consider how take advantage of Material in state that is more better in our real life.
TheoryA
kind of the corrosion
- General Corrosion
- Galva