A synchronous electronic let-off and take-up device isdesigned.The device is controlled by a single-chipcomputer and driven by two step motors.It has somefunctions such as keeping the warp tension constant dur-ing the...A synchronous electronic let-off and take-up device isdesigned.The device is controlled by a single-chipcomputer and driven by two step motors.It has somefunctions such as keeping the warp tension constant dur-ing the weaving instant,releasing the warp tension whenloom is stopping and straining warp when loom is start-ing.By means of these functions,the stop mark of thewoven fabrics is eliminated.In addition,this device canapply to weaving variant-pick-density fabrics.展开更多
文摘A synchronous electronic let-off and take-up device isdesigned.The device is controlled by a single-chipcomputer and driven by two step motors.It has somefunctions such as keeping the warp tension constant dur-ing the weaving instant,releasing the warp tension whenloom is stopping and straining warp when loom is start-ing.By means of these functions,the stop mark of thewoven fabrics is eliminated.In addition,this device canapply to weaving variant-pick-density fabrics.
文摘目的探讨平喘止咳汤治疗对慢阻肺急性加重期(acute exacerbation of chronic obstructive pulmonary disease,AECOPD)患者临床疗效及1 s用力呼气容积(forced expiratory volume in1 second,FEV_(1))、1 s用力呼气容积占用力肺活量比值(forced expiratory volume in 1 second to take up forced vital capacity ratio,FEV_(1)%)的影响效果。方法抽选2019年6月—2020年6月在枣阳市中医医院收治住院的108例AECOPD患者,随机数字表法分为对照组与研究组,各54例。对照组应用常规西药治疗,研究组应用平喘止咳汤治疗。对两组患者的临床治疗效果、肺功能改善情况(FEV_(1)、FEV_(1)%)以及不良反应发生率进行比较。结果研究组临床疗效(96.3%)高于对照组(77.8%),差异有统计学意义(P<0.05)。治疗前,两组FEV_(1)、FEV_(1)%比较,差异无统计学意义(P>0.05);研究组治疗后的肺功能优于对照组(P<0.05)。研究组不良反应发生率为5.6%,低于对照组的20.4%,差异有统计学意义(P<0.05)。结论AECOPD患者应用平喘止咳汤治疗,具有显著疗效,使患者的相关肺功能指标得到更加显著改善,降低患者治疗过程中出现相关不良反应的风险与发生率。
