小型化

The development of modern electronic technique makes power device element to be modularized, miniaturized and integrated; the development of modern control theory and computer technique makes the miniaturization control system practical.

现代电子技术的发展，使各种功率器件日益模块化、小型化、集成化，现代控制理论及计算机技术的发展使控制系统小型化成为现实。

In order to realize the miniaturized frequency selective surface, a new miniaturized-element frequency-selective surface is presented by bending the edge of square loop aperture into the inner space to lengthen the resonant length.

摘 要：为了实现频率选择表面单元的小型化，通过在方环单元的内部空间中弯曲方环边长来增加谐振长度，设计了一种新型小型化频率选择表面。

To meet the requirement of science and technology development, the miniaturization of mass spectrometer has become one of the important trends in analytical instrument development. Miniaturized ion trap mass spectrometer has gained great achievements.

为适应科技发展的需要，质谱议的小型化已成为目前分析仪器发展的一个重要趋势，其中离子阱质谱仪的小型化取得了举世瞩目的成果。

The research work presented in this dissertation focused on developing the scheme and techniques of OPCPA. This dissertation gives the results of the theoretical and experimental investigation on OPCPA scheme. The validation of OPCPA at high energy level was demonstrated successfully. And some important results were achieved. Several key techniques related to developing table-top ultra-intense and ultra-short OPCPA laser system were put forward, for example, the generation of femtosecond seeding pulses, the precisely temporal synchronization of the pump and signal pulses, the pulse stretching and recompression, the OPCPA process with high energy conversion efficiency and etc. Based on the integration of these key techniques, a 1.46-TW/153-fs OPCPA table-top ultra-intense and ultra-high laser system has been developed, which, to the best of our knowledge, has generated laser pulses with the shortest pulse duration and the highest peak power among the joule level OPCPA systems in the world.

本学位论文工作主要是瞄准 OPCPA 这一国际上提出不久并处于初级阶段的新概念，重点开展了 OPCPA 新原理的理论模拟、实验验证，以及基于 OPCPA 新原理的小型化超强超短激光系统的研究与发展，创造性地解决关键科学技术问题，建立并发展相关关键科学技术，如超短脉冲种子源的产生、小型化强激光泵浦源的研制及其脉冲的整形、信号光与泵浦光的精确同步、高效率光学参量放大及高保真脉冲展宽与压缩等关键技术，并在单元技术的总体集成方面取得了重大创新性进展与突破性研究成果，获得了国际上高量级泵浦条件下 OPCPA 激光研究中峰值输出功率最高且脉冲宽度最短的总体领先结果。

With development of 3G mobile communication businesses and miniaturization of antenna, there is a higher and rigid requirement of antenna space and quality.

本文首先介绍了通信微波电路中电磁带隙结构的应用、分析方法、特性及其慢波特性的小型化设计，然后介绍目前移动通信中所涉及到的小型化内置天线的设计、要求与趋势。

The miniature and wide band of equipment become more important than before as the development of communication technology.

随着电子器件朝着小型化、微型化方向发展，以及扩频、跳频技术的应用，对通信设备的宽带化和小型化提出了越来越高的要求。

The multi-beam swath bathymetric technique needs Miniaturization with the developing of modern science and technology. Miniaturization of the bathymeter is currently the main goal of this field. Meanwhile has introduced the embedded concept in the miniaturized process according to the modern request and the need to develop.

现代的科学发展与技术进步以及市场和实际需要为多波束测深技术提出了小型化的要求，同时在小型化的过程中根据现代的要求和发展的需要引入了嵌入式的概念。

All these characteristics can extend frequency band , reduce antennaelectric size and improve impedance characteristics. In order to miniaturization ofantenna, impedance complete compensate and matching optimization of electricallysmall antenna are brought forward, and this method is applied to the discage antennas.

从阻抗特性和辐射特性的实测数据表明，水加载单极振子天线的谐振频率能很好地向低端下移，局部水加载单极圆锥天线在保持原有宽频带特性的前提下，以较少的效率损失实现了较大范围向低频区扩展，即天线小型化，这将为短波超短波波段天线进一步的小型化设计提供很好的思路。

Especially, discage antennas havesmall electrical size. Discage antennas combine the structure of discone antenna andcone-shape monopole antenna, and make use of ultra-wide-band twin-feed matchingsets.

针对小型化的要求，提出了电小天线的阻抗完全补偿和匹配优化的方法，并将该方法应用在已开发的新型笼锥天线系列上，可将天线工作频率的低端较大地向更低端拓展，从而实现天线进一步小型化。

Analysis of body length structure of Trichiurus japonicus and Larimichthys polyactis revealed that there obviously had been a trend of miniaturization of stock since 1980's, the current miniaturization is very serious, but there was little change in body length structure of Setipinna taty .

对带鱼、小黄鱼的体长组成结构分析表明它们的群体从20世纪80年代开始趋于明显的小型化，当前的小型化程度已经相当严重；而在此期间黄鲫的体长组成结构变化不大。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。