文章设计了一套基于QT与智能技术搭建的纺织品质量智能监控系统。该系统通过传输控制协议/网际协议(transmission control protocol/internet protocol,TCP/IP)技术实时采集摄像头图像数据,引入智能算法对图像数据进行缺陷检测,并采集...文章设计了一套基于QT与智能技术搭建的纺织品质量智能监控系统。该系统通过传输控制协议/网际协议(transmission control protocol/internet protocol,TCP/IP)技术实时采集摄像头图像数据,引入智能算法对图像数据进行缺陷检测,并采集图片中标准检测结果后展示在预览视图中;同时采用MYSQL数据库存储检测记录,便于历史数据查询模块进行数据检索,增强质量追溯能力。系统还具备人员管理能力,支持人员录入,并采用高级加密标准(advanced encryption standard, AES)加密方式保障人员信息安全,防止信息丢失与盗用。该系统有效提高了纺织品的检测效率和准确性,降低了人工误差率和劳动强度,同时注重信息安全,为纺织行业的智能化转型提供有益参考。展开更多
Background PD(PD)is associated with a twofold increase in the risk of death especially sudden death.A predisposing factor for cardiac sudden death is prolongation of the QT interval.This study evaluated the potential ...Background PD(PD)is associated with a twofold increase in the risk of death especially sudden death.A predisposing factor for cardiac sudden death is prolongation of the QT interval.This study evaluated the potential association between QT interval and PD.Methods A systematic search was conducted of Medline and EMBASE using the search terms“PD”AND“QT interval”OR“Cardiac Repolarization”to identify articles.Results Seven studies with persons with PD(n=981)and control groups were identified.There was a significant difference in QT interval comparing patients with PD and persons without PD.The odds ratio showed a significant(P<0.001)2.6-fold(random effect)greater QTc prolongation in PD compared to control.Overall,there was a significantly longer QT in patients with PD than controls of 10.7±2.8 ms.Data analysis did not show much publication bias.Focusing only on studies that related the QT interval to the severity of PD as assessed by Hoehn–Yahr classification(n=6),there was a significant(P=0.004)overall correlation between QT interval and the severity of PD.There was little publication bias.The data directly examining patients with PD taking any drug than might prolong QT do not support an association between these mediations and QT prolongation.Conclusion Individuals with PD have a longer QT interval than individuals without PD.The QT interval is associated with a greater severity of PD and a greater probability of developing more severe PD.The QT interval should be considered in assessment of PD and possibly as a target for the treatment of PD.展开更多
文摘Background PD(PD)is associated with a twofold increase in the risk of death especially sudden death.A predisposing factor for cardiac sudden death is prolongation of the QT interval.This study evaluated the potential association between QT interval and PD.Methods A systematic search was conducted of Medline and EMBASE using the search terms“PD”AND“QT interval”OR“Cardiac Repolarization”to identify articles.Results Seven studies with persons with PD(n=981)and control groups were identified.There was a significant difference in QT interval comparing patients with PD and persons without PD.The odds ratio showed a significant(P<0.001)2.6-fold(random effect)greater QTc prolongation in PD compared to control.Overall,there was a significantly longer QT in patients with PD than controls of 10.7±2.8 ms.Data analysis did not show much publication bias.Focusing only on studies that related the QT interval to the severity of PD as assessed by Hoehn–Yahr classification(n=6),there was a significant(P=0.004)overall correlation between QT interval and the severity of PD.There was little publication bias.The data directly examining patients with PD taking any drug than might prolong QT do not support an association between these mediations and QT prolongation.Conclusion Individuals with PD have a longer QT interval than individuals without PD.The QT interval is associated with a greater severity of PD and a greater probability of developing more severe PD.The QT interval should be considered in assessment of PD and possibly as a target for the treatment of PD.
