A method for simultaneous separation and determination of two coumarins,dicumarol and cyclocoumarol,in cosmetics by HPLC-diode-array detector(DAD) was developed.
The diode intrinsic noise temperature of some milimeter Schottky mixer diode was measured and reviewed. A measurement method was described at room and cooled temperature.
Depth of field: with prqactices diode system (IDS), high-capacity ensures that the depth of field in the production of reliable. Autocompensation printing plate surface unevenness.
This paper shows that under certain conditons it is possible to diminish and even eliminate the nonlinear distorsion of a peak envelope detector by biasing the diode adequately.
Quantum well intermixing induced by impurity diffusion has been used in fabricating nonabsorbing windows in the cavity facets to improve the output power of high-power laser diodes.
The leakage of the 1N3595 diode is generally less than one picoampere even with 1mV of forward bias, so the circuit won't interfere with measurements of 10pA or more.
Using diodes and transistors from Radio Shack, and with the help of a music student in his dorm who had perfect pitch, he got it built before Thanksgiving.
Much of the light these cells used would, of necessity, come from incandescent bulbs, fluorescent tubes and light-emitting diodes (LEDs) rather than through the window from the sun.
An electronic component that permits the one-way flow of current is called a diode, but what was really needed was a switch to help turn this flow on and off.
单稳线路,在毫微秒脉冲技术中有广阔的应用前途。
注量的氦注入硅中并经热处理所形成的微孔,对金属原子的吸除作用已为大量的
所证实。
列检测器(DAD)测定化妆品中两种香豆素物质——双香豆素和环香豆素的方法。
被称为正向偏压
过程在加上电压后便会一直持续，它让电流能轻易地流过
极管。
斯传
理论造出了一台计算器，把 100 只晶体管、200 只
