sensor
The range of resonance frequency= 10~30 MHz
The detection limit = 10^-12 g for analyte molecules( according to Sauerbrey’s equation )
S A W
Surface Acoustic Wave sensor in which the acoustic wave on the surface of the piezoelectric crystal, launched and received on the same surface of the crystal.
The range of resonance frequency= 200~400 MHz
The detection limit of SAW
Characteristic of MOGS
1. Metal oxides possess electronic, chemical, and physical properties of high sensitivity to changes in their chemical environment.
2. The sensing properties of semiconductor metal oxide assures improved selectivity and stability
3. Their peculiar characteristics and size effects make them interesting for metal oxide gas sensors
The reason we take Nox as targe
이동통신 단말기 산업은 디지털 융합의 큰 흐름 속에서 정보통신 기기의 핵심으로 자리잡으며, 전세계적으로 꾸준한 성장을 지속하고 있다. 특히, 우리나라에서는 세계시장에서 우수한 경쟁력을 확보한 몇 안되는 산업 중의 하나로 국가경제의 성장 동력으로 각광받고 있다.
과거에는 대부분의 핵심
saw what I saw,
heard what I heard.
The box opens
the doors to hell.
This is the th century,
Phillip, not the dark ages.
The world is ruled
by reason.
We even got rid of God.
And if there is no heaven,
then it follows reasonably...
that there is no hell.
I was at its very window
last night!
Very well.
Suppose, for the sake of argument,
that what you fear happened
has happened.
A box that can