Curved steel bridges are commonly used at interchanges in transportation networks and more of these structures continue to be designed and built in the United States. Though the use of these bridges continues to incre...Curved steel bridges are commonly used at interchanges in transportation networks and more of these structures continue to be designed and built in the United States. Though the use of these bridges continues to increase in locations that experience high seismicity, the effects of curvature and other parameters on their seismic behaviors have been neglected in current risk assessment tools. These tools can evaluate the seismic vulnerability of a transportation network using fragility curves. One critical component of fragility curve development for curved steel bridges is the completion of sensitivity analyses that help identify influential parameters related to their seismic response. In this study, an accessible inventory of existing curved steel girder bridges located primarily in the Mid-Atlantic United States （MAUS） was used to establish statistical characteristics used as inputs for a seismic sensitivity study. Critical seismic response quantities were captured using 3D nonlinear finite element models. Influential parameters from these quantities were identified using statistical tools that incorporate experimental Plackett-Burman Design （PBD）, which included Pareto optimal plots and prediction profiler techniques. The findings revealed that the potential variation in the influential parameters included number of spans, radius of curvature, maximum span length, girder spacing, and cross-frame spacing. These parameters showed varying levels of influence on the critical bridge response.展开更多
目的:对江宁中医院近5年来的药品不良反应(Adverse Drug Reaction,ADR)情况进行回顾性分析,以了解江宁中医院临床发生ADR的规律特点,促进安全合理用药。方法:从国家ADR监测系统导出江宁中医院近5年上报的ADR报告共354例,利用散点图对患...目的:对江宁中医院近5年来的药品不良反应(Adverse Drug Reaction,ADR)情况进行回顾性分析,以了解江宁中医院临床发生ADR的规律特点,促进安全合理用药。方法:从国家ADR监测系统导出江宁中医院近5年上报的ADR报告共354例,利用散点图对患者性别、年龄、ADR类型进行分析,运用帕累托图对怀疑药品品种、给药途径、累及的系统-器官、上报人职业及科室进行分析,并用鱼骨图对主要因素原因进行探讨。结果:ADR多发于40岁以上患者;主要由抗感染药物、维生素营养类电解质类药物等引发,给药途径多为静脉滴注;累及皮肤及其附件、呼吸系统、胃肠系统等;医生上报为主;主要来源于脾胃科、药学部、妇科等。结论:应重点关注40岁以上及10岁以下人群,将抗感染药物、维生素营养类电解质类等设为重点监测品种,加强静脉给药过程监护,以期避免或减少ADR发生。展开更多
基金the Korea Electric Power Infrastructure for funding this work
文摘Curved steel bridges are commonly used at interchanges in transportation networks and more of these structures continue to be designed and built in the United States. Though the use of these bridges continues to increase in locations that experience high seismicity, the effects of curvature and other parameters on their seismic behaviors have been neglected in current risk assessment tools. These tools can evaluate the seismic vulnerability of a transportation network using fragility curves. One critical component of fragility curve development for curved steel bridges is the completion of sensitivity analyses that help identify influential parameters related to their seismic response. In this study, an accessible inventory of existing curved steel girder bridges located primarily in the Mid-Atlantic United States （MAUS） was used to establish statistical characteristics used as inputs for a seismic sensitivity study. Critical seismic response quantities were captured using 3D nonlinear finite element models. Influential parameters from these quantities were identified using statistical tools that incorporate experimental Plackett-Burman Design （PBD）, which included Pareto optimal plots and prediction profiler techniques. The findings revealed that the potential variation in the influential parameters included number of spans, radius of curvature, maximum span length, girder spacing, and cross-frame spacing. These parameters showed varying levels of influence on the critical bridge response.
文摘目的:对江宁中医院近5年来的药品不良反应(Adverse Drug Reaction,ADR)情况进行回顾性分析,以了解江宁中医院临床发生ADR的规律特点,促进安全合理用药。方法:从国家ADR监测系统导出江宁中医院近5年上报的ADR报告共354例,利用散点图对患者性别、年龄、ADR类型进行分析,运用帕累托图对怀疑药品品种、给药途径、累及的系统-器官、上报人职业及科室进行分析,并用鱼骨图对主要因素原因进行探讨。结果:ADR多发于40岁以上患者;主要由抗感染药物、维生素营养类电解质类药物等引发,给药途径多为静脉滴注;累及皮肤及其附件、呼吸系统、胃肠系统等;医生上报为主;主要来源于脾胃科、药学部、妇科等。结论:应重点关注40岁以上及10岁以下人群,将抗感染药物、维生素营养类电解质类等设为重点监测品种,加强静脉给药过程监护,以期避免或减少ADR发生。
