预应力钢绞线生产线PROFIBUS-DP总线通讯故障实用诊断处理方法

PROFIBUS-DP现场总线通讯系统是1×15预应力钢绞线生产线电控系统的关键组成部分,但通讯中断故障频繁发生,由于缺乏有效解决方法,严重制约生产线的稳定运行和高效生产。基于系统的工作原理和结构特点,针对产生故障的原因,提出了一种比较实用、有效的解决方案。阐述了该方案的具体操作步骤,在维修实践中得到较好验证和推广,为确保生产线的稳定、高效运行发挥了积极作用。

Series Reports for World Eminent Ophthalmologists (Part 1) Brief Introduction on Prof. George C. Y. Chiou. PhD

Dr.George Chiou is Professor and Director of the Institute of Ocular Pharmacology and Professor of Neuroscience and Experimental Therapeutics at Texas A&M University System Health Science Center.He has served as Head of Department of Medical Pharmacology and Toxicology for 27.5 years until the department was reorganized in 2006.He also is an Adjunct Professor of Surgery and Ophthalmology at Texas A&M University College of Medicine,

Ti(C_(1-x)N_x)系固溶体粉末的制备研究

研究了在碳热还原反应产业化制备Ti(C1 -xNx)系固溶体粉末过程中 ,原料配比、反应温度和N2 流量等工艺参数对Ti(C1 -xNx)组成和性能的影响 .结果表明 ,通过控制原料成分C/Ti的准确配比 ,可产业化制备出成分优良的不同单相Ti(C1 -xNx)固溶体 .在Ti(C1 -xNx)粉末中x值随反应温度的升高或N2 流量的减小而变小 .Ti(C1 -xNx)系固溶体的点阵常数与C或N含量有很好的对应关系 .通过调整粉末中元素的固溶度可控制粉末的晶体结构 。