重症急性胰腺炎是临床常见的外科急腹症,病情急、重、病死率高,可并发腹内高压及腹腔间隔室综合征进而导致多器官功能障碍,因此对重症急性胰腺炎的治疗和护理是临床关注的焦点和重点.文章在对腹内高压(IAH)/腹腔间隔室综合征(ACS)的定义、分级及分类等相关知识进行综述的基础上,进一步概述腹内压(IAP)监测的影响因素及方法,进而从呼吸道、液体复苏、肾功能、肠功能护理等4个方面对重症急性胰腺炎合并腹内高压、腹腔间隔室综合征的护理进展加以综述.

Based on the single chip microcomputer AT89C2051 as the central processor,the design and reliability test of the speed control system of the rotating arc sensor were mainly introduced,and the design of dynamo drive circuit was aslo briefly introduced.The data acquisition card ART2932 was used to collect and process pulse signals emitted by optocoupler.The square wave signals produced by SCM AT89C2051 were emphatically introduced,resulting in software design of PWM signal.By using the rotating arc sensor,it is easy to achieve accurate real-time tracking of the weld seam,and the reliability of the speed control system is greatly improved.

针对准确跟踪90°折线角焊缝比较困难的问题,提出了一种基于旋转电弧传感器和路径规划组合的方法.通过对旋转电弧传感器采集到的焊接电流进行滤波,采用最小二乘偏差识别和模糊控制算法,控制机器人左右轮差速运动或水平滑块伸缩.直角拐弯时基于路径规划和水平滑块伸缩跟踪焊缝,未进入直角拐弯时是基于左右轮差速运动跟踪焊缝.实验结果表明,该算法能够很好地实现90°折线角焊缝的跟踪.