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We adopt a similar discotic liquid crystalline synthesis way to synthesize target molecules 7, 11, 15, 19, 21 in this article. The target molecules have a central triphenylene core and different side chains including triphenylamine derivatives and carbazole molecules. We observe these molecules optical and electrochemical properties and the effect of hole-transport layers in organic light emitting diode.

本篇论文的研究主旨是采用类似盘状液晶的合成方式，以三伸苯作为分子的核心，藉由改变不同的三苯胺及咔唑醚基侧链来合成目标化合物7、11、15、19、21，并观察分子的光学性质变化，电化学行为，以及作为电洞传输材料在有机电激发光元件上的效果。

We do some theoretical and experimental working on the diode-pumped solid-state self-mode-locked laser in this paper.

在理论部分从四能级系统的速率方程出发，讨论了半导体激光器纵向泵浦的固体激光器的输入输出特性。

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。

The main factors to influence collimating the beam of laser diode with lenses are analysed.

分析了它们各自的适用范围、优点和局限性。

This article chiefly studies the beam collimating of high power diode arrays laser.

本课题主要对大功率半导体激光器阵列光束准直技术进行了研究。

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。

The commutating circuit is composed of diode commutating bridge.

整流电路由二极管整流桥组成。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。