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The comparison of blood loss and operation score between two neighboring groups both showed no significance. Also, we found significant difference between group4 and group 7, as well as group5 and group 7 in their operative time comparison (P=0.045 and 0.028, respectively). No complications but a slight subcutaneous emphysema happened on the 21 cases.3. When the electronic pulse-wave mode insufflator is working, IAP of patients may reach 40mmHg, more than twice of the setting point, 15mmHg.

相邻两组的手术时间比较为第5组与第6组间差异有显著性(P=0.034)，相邻两组的出血量比较差异均无显著性(P值分别为0.273，0.607，0.731，0.494，0.863，0.494)，相邻两组的手术得分比较差异均无显著性P值分别为0.761，0.729，0.344，0.873，0.074，0.816非相邻组别的手术时间比较为第4组与第7组、第5组与第7组间差异有显著性(P值分别为0.045，0.028。

In this paper,the integral equation of time domain is used to determine the spatial distribution of electric-field in an electromagnetic pulse simulator.

本文利用时域积分方程计算了电磁脉冲模拟器空间场的分布。

This invention relates to a DC linear motor digital controller including a central processor circuit, a data memory, a program memory, an A/D conversion circuit, a D/A conversion circuit, a linear shift orthogonal code pulse signal circuit, a signal isolation circuit, among which, the center processor circuit is composed of a special DSP chip controlled by the motor, a complicated programmable logic device CPLD combining with a peripheral expanding circuit, said digital controller fully utilizes the motor to control the special DSP chip to integral DSP kernel CZXLP and the rich external circuit in a single chip to make up of a digital controller for controlling high frequency response DC linear motor with small volume, low dissipation and high reliability.

高频响直流直线电机数字控制器，属于电机自动控制技术领域，目的在于获得快速、高精度往返运动的控制效果，实现高频响直流直线电机的精密位置跟踪控制功能。本发明包括中央处理器电路，数据存储器，程序存储器，A/D转换电路，D/A转换电路，直线位移正交编码脉冲信号电路，信号隔离电路；中央处理器电路由一个电机控制专用DSP芯片，复杂可编程逻辑器件CPLD，结合外围扩展电路组成。该数字控制器充分利用电机控制专用DSP芯片将高性能DSP核C2xLP和丰富的功能外设电路集成在单个芯片上这一特点，构成了一个体积小、功耗低、可靠性高和功能比较齐全的高频响直流直线电机控制用的数字控制器，使系统的整体成本大大降低。

This paper introduces the principle and design of a new integration cell for a long pulse integrator with ultra-low drift.

本文论述了应用在长时间无零漂积分器中的单元积分电路的原理与设计。

The influence of interdiction diode location on the performance of pulse current falling-edge was discussed, and some schemes for different output powers were proposed.

讨论阻断二极管位置对关断性能的影响并提出了在不同输出功率情况下的推荐方案。

The relation between interelectrode gap and flow rate in pulse electrochemical finishing was analyzed in theory,and the rules of effect of both on surface quality were highlighted and analyzed based on the experiments.

通过理论分析脉冲电化学光整加工中的间隙与电解液流速之间的关系，并通过系统地实验研究，探讨了加工间隙和流速对表面质量的影响规律。

The rules of effect of the experimental parameters of the pulse electrochemical finishing, such as the flow field, the electrolyte flow rate and the interelectrode gap on surface quality are highlighted and analyzed based on the experiments in this paper.

目前 ，脉冲电化学加工主要集中在脉冲电解成形加工方面，加工精度是其重点研究对象[1～ 7] 。日本学者用成对电极的方法对线切割加工后的表面进行光整加工[8] ，取得了较好的表面质量，但这种方法也采用成形加工，通用性较差。

With the efforts of pre-processing interelectrode electrical parameters, discharge voltage and discharge current, the data acquisition system is qualified only if it can gather signal with frequency of 2MHz, the maximum frequency the pulse power source can generate.

通过对待测信号的调理，使采集系统的任务降到只需以微细电火花脉冲电源的脉冲速率进行采样即可，即速率要求为2 MHz。

pulse electrochemical finishing ; flow field ; interelectrode gap

基本原理是以周期性间歇脉冲电流代替直流，使工件阳极在加工

To this problem, the adaptive scheduling algorithms based on scheduling gain and online pulse interleaving are proposed.

针对这一问题，分别提出基于调度收益和基于在线脉冲交错的波束驻留自适应调度算法。

I was up all night because I was in pain, she said.

我整夜，因为我在疼痛，她说。

A crow caws /craoks.

乌鸦叫。 51-论文网