pcss

The working mechanism of PCSS is studied , and the analysis of relationship between carrier concentration and electrical field are given .

通过对光导开关工作机理的学习，分析了光导开关在两种工作模式下的载流子浓度与场强、入射激光脉宽等参量之间的关系。

ⅲ - ⅴ compound semiconductors , such as Gallium arsenide ( GaAs ), Indium phosphide ( InP ) and their doped materials , are suitable to make high speed and high power PCSS with picosecond ( ps ) time response .

利用Ⅲ-Ⅴ族化合物半导体材料砷化镓（GaAs）和磷化铟（InP）及其掺杂材料制作的光导开关具有很好的时间响应及高功率输出特性。

Object-oriented Middleware based solutions are the main traditional PCSs integration method .

传统的过程控制系统集成主要是基于面向对象中间件的解决方法。

Research of Transmission Characteristics of Nonlinear Electric Pulse Generated by PCSS 's

光导开关产生的非线性电脉冲的传输特性

The Pattern Design and System Research of PCSS Base on Photoconductive Sampling Measurement Method

基于光导采样测量方法的光电导开关设计与系统研究

Computer Aided Simulation of the PCSS 's Linear Operation Mode

光导开关线性工作模式下的计算机模拟

Integrated Work Breakdown Structure Modeling and Its Realization in PCSS

项目总控支持系统中集成工作分解结构建模及其实现

Microwave can be generated directly from DC source by applying PCSS .

利用光控光电导开关可以直接从直流电源产生高功率的微波脉冲。

Especially PCSS as antennas generating THz electromagnetic radiation have a broad application value and great significance .

特别是光电导开关作为辐射天线产生THz电磁波有着广阔的应用价值和重大意义。

Analysis of Lock-On and Time Delay in High-Voltage GaAs PCSS ′ s

高压GaAs光导开关的锁定及延迟效应机理分析

An investigation of transient photoconductive effects of GaAs PCSS 's

GaAs光导开关瞬态光电导效应的研究

Characteristics & Applications of PCSS 's

半导体光电导开关的非线性特性及应用

The main contributions in this thesis are as followings : A theoretical model of PCSS has been established based on drift diffusion theory .

本文建立了基于漂移-扩散理论的光导开关理论模型。

Methods Three patients with full data of PCSS were collected and then their radiological findings and characteristics were analyzed together with review of the literature .

方法收集资料完整早发型先天性骨梅毒3例，分析其X线表现和特点并复习文献。

Objective To study the radiological characteristics , diagnostic gist and differential diagnosis of precocious congenital skeletal syphilis ( PCSS ) .

目的探讨早发型先天性骨梅毒X线表现和特点，诊断要点和鉴别诊断。

Polycarbosilanes ( PCSs ) are synthesized at high temperature under high pressure . Synthesis processing and vacuum distillation of PCS are investigated .

采用高温高压法合成了聚碳硅烷（PCS），通过改变合成条件与减压蒸馏温度的方法对PCS分子量及其分布进行调控。

The results indicate that the high gain mode of the PCSS is quenched by decreasing the remnant voltage of pulsed energy storage capacitor .

分析表明，选择小容量的储能电容，可以使砷化镓光电导开关工作于高增益淬灭模式。

Firstly it is shown that the thermal breakdown and electron-trapping breakdown theories are the main reason causing the breakdown of PCSS .

指出电子俘获击穿机制与热击穿是开关击穿的主要原因。

A high-power electromagnetic pulse synthesized photoconductive semiconductor switch ( PCSS ), time-domain ultra-wideband antennas and spatial power combining technology is studied in detail .

本文结合了光导开关、时域超宽带天线和空间功率合成技术，对高功率电磁脉冲辐射进行了较为深入系统的研究。

The linearity mode of PCSS can be modeled in Pspice using a time-varying resistance , the non-linearity mode only can be realized using numerical analysis .

线性工作模式下的光导开关可以用Pspice中的非线性电阻模型实现；

In this paper , the PCSS 's ciucuit structure , gap size , the microstrip figure , coupling interface , transimission line configure are investigated .

本文分析了光电导开关电路结构、开关间隙、光电导开关微带线的形状、耦合接口、传输线结构。

Especially , the PCSS 's are paid much more attention to because they can operate in a nonlinear mode when the thresholds of activating optical energy and bias field .

特别是在一定的触发光能和偏置电场阈值条件下，光导开关的非线性工作模式倍受人们的关注。

By comparing the profile of field before the trigger with that after the trigger , the physical essence of the nonlinear operational mode in PCSS 's is stated .

通过对比光脉冲作用前后器件内电场的分布情况，说明了光导开关非线性工作模式的物理本质。

According to the result of the experiment of linear electrical pulse , which was generated by PCSS 's , and the external working circuit , the numerical simulation was performed by computer .

针对光导开关产生的线性电脉冲的实验结果，结合外电路，应用计算机对光导开关进行了数值模拟。

Different wavelengths of light absorption mechanism were analyzed theoretically about PCSS with emphases on the optical absorption of which the photon energy is less than that of GaAs bandgap .

理论上分析了光电导开关对于不同波长的光吸收机制，重点讨论了光子能量小于GaAs禁带宽度的激光触发开关的非本征光吸收。

The electron-trapping breakdown is the main reason accelerating the thermal breakdown , and the thermal breakdown is the fundamentality factor of the breakdown of PCSS .

电子俘获击穿机制是导致热击穿的主要原因，而热击穿是导致开关彻底失效的根本因素。

PCSS has several merits , such as high power capacity , high repetition rate , low jitter , etc. PCSS attracts increasing attention in miniaturization , repeat-operation pulsed power device design .

光导开关以其高功率、高重复频率、低抖动等优点，在小型化、重复频率脉冲功率装置设计中日益受到重视。

With the rapid development of pulsed power technology , solid switch devices are being gradually applied . In these devices , the photoconductive semiconductor switch ( PCSS ) with good performances arouses broad attention .

随着脉冲功率技术的迅速发展，固态开关器件正逐渐被广泛应用，其中光导半导体开关更以其优良的特性受到了关注。

Especially , PCSS 's can be excited by lower energy laser pulse and have high-gain output , so it is possible to make the all-solid state mini-size high power ultra-wide-band electromagnetic pulse emitter system .

而且光电导开关具有可以用较低能量的光脉冲激励和具有高增益特性的优点，从而使制成全固态化的微型高功率超宽带微波脉冲产生器系统成为可能。

This paper analyzes the need of Guizhou mobile communication corporation ( GMCC ) palmtop client service system ( PCSS ) in detail , discusses the advantage and possibility of construction PCSS using USSD in GMCC .

本文通过对贵州移动掌上客户服务需求的详细分析，论述了贵州移动应用USSD技术来建设掌上客户服务系统的优势及可行性。