泵

However, a kind of saturable absorption effect has been introduced in unpumped EDFA based on the absorption of the Erbium system which means a lower absorption coefficient in higher intensity.

但是未泵浦的EDFA由于铒离子系统的吸收作用存在一种饱和吸收现象，这种饱和吸收作用使得未泵浦的EDFA在一个高光强下有很低的吸收系数。

The research which is the important part of the tunable erbium-doped fiber laser is composed of two main parts: 1. the gain part of the tunable erbium-doped fiber laser, which in fact is an erbium-doped fiber amplifier, its output characteristics are discussed both in theory and experiment, and the differences are also discussed between theory and experiment; 2. the saturated absorber part of the tunable erbium-doped fiber laser, also the part to narrow the line width of the fiber laser. The line-width narrowing mechanism in fiber laser induced by unpumped Er-doped fiber is presented from the aspect of coupling wave equation, and the main factor is considered as the standing wave induced by interference. The line-width is narrower when the standing wave is stronger, and the narrowing effect disappears with the disappearance of the standing wave. In the experiment, when adding a Faraday mirror in the laser cavity to remove the standing wave , the narrowing effect disappears. So the theory is proved by the result of the experiment.

本课题的研究内容是集成光学声光可调谐掺铒光纤激光器的重要组成部分，主要分两部分：1、声光可调谐掺铒光纤激光器中增益部分的研究，相当于对掺铒光纤放大器的研究，理论上对掺铒光纤放大器的输出特性进行分析，实验上实现了掺铒光纤放大器系统，并将实验数据与理论计算数据进行对比，分析了误差产生原因；2、声光可调谐掺铒光纤激光器中饱和吸收体部分的研究，即压窄光纤激光器输出线宽的研究，从耦合波方程出发，理论上解释了未泵浦掺铒光纤压窄光纤激光器线宽的原理，分析了影响该作用的主要因素是未泵浦掺铒光纤中相对传输的光干涉形成的驻波：驻波越强，压窄效果越好，相反当没有驻波时，没有压窄效果，在实验上通过在激光器腔内加入法拉第旋转镜使驻波消失，同时压窄效果消失，从而验证了理论分析的正确性。

The operation principle, structure and control method of differential SMA actuator, the one-way flow mechanism and structure design of the valveless pump are analyzed.

该文分析了差动形状记忆合金执行器的运行原理、结构和控制方法，无阀泵的单向泵流机理、结构和设计方法。

His paper presents a parallel dynamic passive valveless micropump, which consists of three layers—valve, diaphragm and electromagnetic coil.

本文提出了一种并联式动态无阀并联微泵，该微泵由阀体、振动膜和电磁线圈三层结构组成。

The valveless micropumps with various geometric structures were designed according to the diffuser /noz-zle theory.

依据扩散口/喷嘴理论，设计了不同几何尺寸无阀微泵的扩散口/喷嘴光刘掩模版图，采用硅平面工艺、各向异性腐蚀及削角补偿等技术，制作出了多种无阀微泵。

VMP metering pump from a set of FMI and a cascade from the second step into the motor, FMI is a now widely recognized precision stepper motor driven valveless metering pump.

VMP的电压差计量从FMI系列设置和级联泵从电机到第二步，FMI系列产品是现在人们普遍认识精密步进电机驱动无阀计量泵。

The clarification of mixed flow pumps with vaned diffuser is conducted due to specific speed.

由于斜流泵兼有离心泵和轴流泵的优点，其应用范围越来越广。

NEMO? Pumps are positive displacement pumps and suitable for all media of waterlike up to most thick consistency with solid or fibrous material or pasty consistency with extreme concentrations of solid, high viscous media and also gas containing,In paper making industry,NEMO?

奈莫泵是一种容积式泵，有一定自吸能力，可用于输送单一的或多种介质的流体，包括腐蚀性、磨蚀性、高粘度、含气体或固体颗粒的液体。

The direct reverse circulaeion tor dyeing is executed by change ralve inside the pump .The impeller inside the pump can provide large flow and enough head coelicient for yarm dyeing procredure.Due to its strong penetrbility,it is suitable for very difficrlt texture and various kinds of textures.The dyed textrue is with high color fastness and good uniform dyeing effects.

其染液正反循环通过泵内的换向阀自动完成，泵内叶轮能为染纱过程提供大流量和足够扬程系数，其穿透性强，适染高难织物，被染织物色牢度高，具有很好的匀染效果，适染多种织物。

In this paper, several important liquid delivery techniques for microfluid, including mechanical displacement micropumps techniques, non-mechanical micropumps techniques based on electric, optic and magnetic, etc, are reviewed concisely.

本文简要评述了用于微流体驱动的机械微型泵技术，基于电、光、磁等的非机械微型泵技术，以及微流体的高效混合控制等技术的研究现状，对微流体驱动与控制的未来作了展望。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。