二极管

The transmission coefficients through unmagnetized plasma photonic crystals are calculated,and the effects of plasma temperature and density on characteristic of band gap structure for unmagnetized plasma photonic crystals is analyzed with them.

人们利用光子晶体的这个特性在光纤、发光二极管、光集成器件等方面有运用[4-6]。等离子体光子晶体是由Hojo等人[7]提出。它是由等离子体和介质或真空构成的人工周期性结构。

By adopting ridge waveguide unpumped absorbing region structure and by antireflection coating technology, the superluminescent diodes were fabricated.

采用直波导吸收区而后在器件的出光腔面上镀制抗反射膜的方法制作超辐射发光二极管。

This paper presents theoretical analysis, circuit design of ka band doubler using two beam-lead Schottky barrier diodes as variator.

本文主要阐述了利用反向并联二极管对进行二倍频的原理和利用该原理设计8mm波段二倍频器。

Extensive studies have been made on organic and polymeric light emitting diodes because of their practical application as well as inherent scientific interest. Polymer LEDs using Poly (p-Phenylene Vinylene) were first reported in 1990 by Friend Research group and since then various other kinds of conjugated polymers have been developed which exhibit electroluminescence.

自从1990年英国剑桥大学Friend研究小组用聚对苯撑乙烯制作发光二极管以来，人们对PPV及其衍生物的电致发光性能进行了广泛研究并且取得了很大进展。

The instrument consists of three parts: optical receiving system,signal amplifying and controlling system and display system.

该系统采用了PIN硅光电二极管作光接收器件，由光学接收系统、信号放大与处理系统及显示系统三部分组成。

Along with Thomas Edison's carbon button initiated the foundation principles upon which the diode was later invented, and upon which radio, television, and computer transistors are based through the foresights of our beloved Thomas Alva Edison who in his lifetime was an inventor of beggaring imagery.

与Thomas Edison 的碳一起按钮创始二极管以后被发明的基础原则，并且在哪台收音机，电视，并且计算机晶体管根据通过在他的一生是beggaring 的成像的发明者我们心爱的Thomas Alva Edison 的foresights 。

In conventional charging circuit of solar lighting system,the solar cell is often connected to battery by a blockading diode,which will cause poor efficiency of solar energy,and it will also make the battery lack of charging,thus shorten its life.

在传统的太阳能路灯系统中，通常经过防电流倒灌二极管将太阳能板与蓄电池直接相连，这将导致太阳能板的利用效率低，同时容易使蓄电池长期处于欠充满状态，造成其使用寿命的缩减。

The mechanism of optical diode effect in nonlinear chirped gratings is studied.

研究了啁啾光纤光栅的光二极管效应的机制。

A plurality of groups of uncontrollable diode commutating system can respectively work in different working conditions.

多组不可控二极管整流系统分别可以在不同的工作状态下工作。

Commutating diode D is necessary with an inductive load.

二极管D和电感性负载的变换很有必要。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。