A general introduction was made on effect, control principle and PLC logic control of the loop control system in high speed rod rolling. Influence of the loop regulation on tension among finisher, pinch roll and wire laying head was presented. 概述活套控制系统在高速线材轧制中的作用、控制原理、PLC逻辑控制及活套调节对精轧机和夹送辊、吐丝机之间张力的影响。
Through dividing electronic expansion valve from evaporator system and based on constant gain of superheat open loop rule, the compensation theory of valve head was analyzed. 通过将电子膨胀阀与受控对象(蒸发器)细化分开来,并依据恒定开环增益准则从理论上分析了阀头补偿原理。
Results The uniformity in conventional CT was better than that in spiral CT with software emended function before packed with aluminum loop with the condition of head CT scan, and just the opposite result was obtained after packing. 结果用头部条件扫描,模体未包铝环时,普通CT机的均匀性优于有软件校正功能的多层螺旋CT机;
The executive mechanism basic loops are the working arm loop and the harvester head loop. 执行机构液压系统基本回路:工作臂回路、伐木头回路。
By the sequence analysis, excluding the cystine, the glycine in Loop region, the praline and isoleucine in the head and tail of α-helix and lysines in C-terminus were also shown high conservation in 62 defensins. 氨基酸序列分析发现,62条防御素序列中除保守的半胱氨酸外,Loop区的甘氨酸;α-螺旋结构首尾的脯氨酸和异亮氨酸;C末端的赖氨酸同样高度保守。