2. 신호탐지이론 (Signaldetection theory, SDT)
신호탐지이론(Signaldetection theory, SDT) 혹은 탐지이론(Detection theory)은 신호의 탐지가 신호에 대한 관찰자의 민감도와 관찰자의 반응 기준에 달려 있다는 이론이다. 이 이론은 신호(Signal)와 노이즈(Noise)를 구분하는 데 관련된 능력을 측정하는
Introduction
An analytical technique
Separating ions or molecules that are dissolved in a solvent.
Mobile phase : liquid
Stationary phase : liquid or solid
The stationary phase for adsorption chromatography
Silica(SiO2 · xH2O)
Alumina(Al2O3 · xH2O)
Solvents for adsorption chromatography
Solvent competes with solute for adsorption sites on the stationary phase
The more strongly
5.2 Drug Delivery System
5.2.1 Advantage of Nano-drug delivery system
By diagnosis, and for treatment, we need enhanced drug delivery system. Drug delivery system of these days is just eat and let it flow through the body. It is not good at efficiency. Because the digestive system sometimes digest and remove the drug before it reaches to the target.
For enhancing the efficiency of drug
v 포락선 검출 (Envelope Detection)
변조된 신호의 포락선을 찾는 방법, 신호의 양 값동안 다이오드를 통해 콘덴서에 첨두치로 충전되고 첨두치 후 저항을 통해 방전하는 과정을 반복하게 된다.
Ripple을 줄이기 위한 방전시간 계수 RC 값 조건은
이다. 포락선 검출기의 출력은
이다.
3.SSB(Single Si
5. Expanding On Topic – talking about natural disasters
Choose several questions among the given questions and discuss them with your partner.
(Use the phrases learned in speaking sections if you want)
1. What is a disaster?
2. Have you ever been in a disaster?
3. What kind of disasters is common in your country?
4. What can you do to prepare in advance for a disaster?
5. How mu