Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-...Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.Design/methodology/approach–The paper describes the key technologies that are involved in the development of the system,such as P-wave identification and earthquake early-warning,multi-source seismic information fusion and earthquake emergency treatment technologies.The paper also presents the test results of the system,which show that it has complete functions and its major performance indicators meet the design requirements.Findings–The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety.The key technical indicators of the system have excellent performance:The first report time of the P-wave is less than three seconds.From the first arrival of P-wave to the beginning of train braking,the total delay of onboard emergency treatment is 3.63 seconds under 95%probability.The average total delay for power failures triggered by substations is 3.3 seconds.Originality/value–The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions.It also contributes to the earthquake prevention and disaster reduction efforts.展开更多
目的探究标准化急诊预检分诊模式在区域性胸痛中心中的应用价值。方法选取2020年7月—2022年1月陆军第七十三集团军医院未实施标准化急诊预检分诊模式时间段内接诊的100例急性胸痛患者设为对照组,将2022年2月—2023年6月陆军第七十三集...目的探究标准化急诊预检分诊模式在区域性胸痛中心中的应用价值。方法选取2020年7月—2022年1月陆军第七十三集团军医院未实施标准化急诊预检分诊模式时间段内接诊的100例急性胸痛患者设为对照组,将2022年2月—2023年6月陆军第七十三集团军医院开展标准化急诊预检分诊模式后接诊的100例急性胸痛患者为研究组。对比2组患者抢救指标、临床效果、急诊工作效率以及不良反应发生情况差异。结果研究组患者的预检分诊时间[(2.03±0.21)minvs.(3.05±0.29)min]、首份心电图时间[(5.06±1.01)minvs.(6.23±1.51)min]、开放静脉通路时间[(9.11±2.01)minvs.(11.63±2.01)min]、床旁测试(point-of-care-testing,POCT)+检验报告时间[(18.98±2.65)min vs.(23.65±2.81)min]均明显短于对照组(P<0.05)。研究组患者的首次医疗接触(first medical contact,FMC)至经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)(FMC-to-B)[(43.20±3.65)minvs.(56.96±5.18)min]、自送到医院至接受正规治疗总时间(total time from hospital to receiving formal treatment,D-to-B)[(72.36±6.23)min vs.(110.15±13.23)min]以及肌钙蛋白Ⅰ获得时间[(21.02±2.65)minvs.(31.05±3.11)min]均显著低于对照组(P<0.05)。研究组患者的急诊处置时间[(10.23±2.09)min vs.(16.32±3.01)min]以及急诊候诊时间[(0.98±0.31)min vs.(3.55±0.59)min]均明显短于对照组(P<0.05)。2组患者在预检分诊准确率比较,差异无统计学意义(P>0.05)。研究组患者出现心律失常1例,心力衰竭1例,不良反应总发生率为2.00%(2/100),显著低于对照组患者的9.00%(9/100)(P<0.05)。结论对急性胸痛患者开展标准化急诊预检分诊模式有助于提高患者预检分诊效率、改善临床治疗效果,对降低不良反应发生率具有积极意义。展开更多
基金This research is supported by the R&D Fund Project of China Academy of Railway Science Corporation Limited[Grant No.2022Y253].
文摘Purpose–The purpose of this study is to introduce the top-level design ideas and the overall architecture of earthquake early-warning system for high speed railways in China,which is based on P-wave earthquake early-warning and multiple ways of rapid treatment.Design/methodology/approach–The paper describes the key technologies that are involved in the development of the system,such as P-wave identification and earthquake early-warning,multi-source seismic information fusion and earthquake emergency treatment technologies.The paper also presents the test results of the system,which show that it has complete functions and its major performance indicators meet the design requirements.Findings–The study demonstrates that the high speed railways earthquake early-warning system serves as an important technical tool for high speed railways to cope with the threat of earthquake to the operation safety.The key technical indicators of the system have excellent performance:The first report time of the P-wave is less than three seconds.From the first arrival of P-wave to the beginning of train braking,the total delay of onboard emergency treatment is 3.63 seconds under 95%probability.The average total delay for power failures triggered by substations is 3.3 seconds.Originality/value–The paper provides a valuable reference for the research and development of earthquake early-warning system for high speed railways in other countries and regions.It also contributes to the earthquake prevention and disaster reduction efforts.
文摘目的探究标准化急诊预检分诊模式在区域性胸痛中心中的应用价值。方法选取2020年7月—2022年1月陆军第七十三集团军医院未实施标准化急诊预检分诊模式时间段内接诊的100例急性胸痛患者设为对照组,将2022年2月—2023年6月陆军第七十三集团军医院开展标准化急诊预检分诊模式后接诊的100例急性胸痛患者为研究组。对比2组患者抢救指标、临床效果、急诊工作效率以及不良反应发生情况差异。结果研究组患者的预检分诊时间[(2.03±0.21)minvs.(3.05±0.29)min]、首份心电图时间[(5.06±1.01)minvs.(6.23±1.51)min]、开放静脉通路时间[(9.11±2.01)minvs.(11.63±2.01)min]、床旁测试(point-of-care-testing,POCT)+检验报告时间[(18.98±2.65)min vs.(23.65±2.81)min]均明显短于对照组(P<0.05)。研究组患者的首次医疗接触(first medical contact,FMC)至经皮冠状动脉介入治疗(percutaneous coronary intervention,PCI)(FMC-to-B)[(43.20±3.65)minvs.(56.96±5.18)min]、自送到医院至接受正规治疗总时间(total time from hospital to receiving formal treatment,D-to-B)[(72.36±6.23)min vs.(110.15±13.23)min]以及肌钙蛋白Ⅰ获得时间[(21.02±2.65)minvs.(31.05±3.11)min]均显著低于对照组(P<0.05)。研究组患者的急诊处置时间[(10.23±2.09)min vs.(16.32±3.01)min]以及急诊候诊时间[(0.98±0.31)min vs.(3.55±0.59)min]均明显短于对照组(P<0.05)。2组患者在预检分诊准确率比较,差异无统计学意义(P>0.05)。研究组患者出现心律失常1例,心力衰竭1例,不良反应总发生率为2.00%(2/100),显著低于对照组患者的9.00%(9/100)(P<0.05)。结论对急性胸痛患者开展标准化急诊预检分诊模式有助于提高患者预检分诊效率、改善临床治疗效果,对降低不良反应发生率具有积极意义。