目的旨在进一步了解2020年海南省常住居民死因监测数据的漏报情况,探索行动型国家死亡原因分析工具(Analysis of Causes of National Deaths for Action,ANACONDA)在死因监测质量分析中的应用。方法数据来源于海南省疾病预防控制中心人...目的旨在进一步了解2020年海南省常住居民死因监测数据的漏报情况,探索行动型国家死亡原因分析工具(Analysis of Causes of National Deaths for Action,ANACONDA)在死因监测质量分析中的应用。方法数据来源于海南省疾病预防控制中心人口死亡信息监测管理系统,主要为2020年1月1日—2020年12月31日海南省19个市县死因监测点上报的33418例死亡数据。所有数据通过ANACONDA进行统计分析,死因分类采用国际疾病分类第10版(ICD-10)。结果2020年海南省报告死亡个案共33418例,粗死亡率3.6‰,85岁以下男性死亡占比均高于女性,而在85岁及以上死亡占比则相反。死因监测质量分析显示,2020年海南省死亡监测存在漏报情况,死因漏报率为30.1%;三大类死因各年龄组构成与全球疾病负担区域各年龄组构成均存在差异,中高年龄组的死因误报情况较为显著;2020年海南省死亡数据生命统计性能指标整体得分为52.8,死因的报告质量得分为85.5,可使用的具体死因的级别得分为88.4,改善死因数据质量优先行动区域的死亡报告的完整性所占份额最大,其次是死因报告的质量;男性与女性漏报调查后的具体死因构成比存在差异,但其顺位变化不明显。结论2020年海南省死因监测数据的完整性较低,建议优先改善死亡数据报告的完整性,加强死因监测系统的培训力度,同时定期进行死因监测系统评价与监督。展开更多
The flow behavior and dynamic recrystallization(DRX) behavior of an as-cast AZ91 D alloy were investigated systematically by applying the isothermal compression tests in temperature range of 220-380 ℃ and strain ra...The flow behavior and dynamic recrystallization(DRX) behavior of an as-cast AZ91 D alloy were investigated systematically by applying the isothermal compression tests in temperature range of 220-380 ℃ and strain rate range of 0.001-1 s^-1.The effect of temperature and strain rate on the DRX behavior was discussed.The results indicate that the nucleation and growth of dynamic recrystallized grains easily occur at higher temperatures and lower strain rates.To evaluate the evolution of dynamic recrystallization,the DRX kinetics model was proposed based on the experimental data of true stress-true strain curves.It was revealed that the volume fraction of dynamic recrystallized grains increased with increasing strain in terms of S-curves.A good agreement between the proposed DRX kinetics model and microstructure observation results validates the accuracy of DRX kinetics model for AZ91 D alloy.展开更多
文摘目的旨在进一步了解2020年海南省常住居民死因监测数据的漏报情况,探索行动型国家死亡原因分析工具(Analysis of Causes of National Deaths for Action,ANACONDA)在死因监测质量分析中的应用。方法数据来源于海南省疾病预防控制中心人口死亡信息监测管理系统,主要为2020年1月1日—2020年12月31日海南省19个市县死因监测点上报的33418例死亡数据。所有数据通过ANACONDA进行统计分析,死因分类采用国际疾病分类第10版(ICD-10)。结果2020年海南省报告死亡个案共33418例,粗死亡率3.6‰,85岁以下男性死亡占比均高于女性,而在85岁及以上死亡占比则相反。死因监测质量分析显示,2020年海南省死亡监测存在漏报情况,死因漏报率为30.1%;三大类死因各年龄组构成与全球疾病负担区域各年龄组构成均存在差异,中高年龄组的死因误报情况较为显著;2020年海南省死亡数据生命统计性能指标整体得分为52.8,死因的报告质量得分为85.5,可使用的具体死因的级别得分为88.4,改善死因数据质量优先行动区域的死亡报告的完整性所占份额最大,其次是死因报告的质量;男性与女性漏报调查后的具体死因构成比存在差异,但其顺位变化不明显。结论2020年海南省死因监测数据的完整性较低,建议优先改善死亡数据报告的完整性,加强死因监测系统的培训力度,同时定期进行死因监测系统评价与监督。
基金Project (51075098) supported by the National Natural Science Foundation of ChinaProject (HIT.NSRIF.2014006) supported by the Fundamental Research Funds for the Central Universities,China
文摘The flow behavior and dynamic recrystallization(DRX) behavior of an as-cast AZ91 D alloy were investigated systematically by applying the isothermal compression tests in temperature range of 220-380 ℃ and strain rate range of 0.001-1 s^-1.The effect of temperature and strain rate on the DRX behavior was discussed.The results indicate that the nucleation and growth of dynamic recrystallized grains easily occur at higher temperatures and lower strain rates.To evaluate the evolution of dynamic recrystallization,the DRX kinetics model was proposed based on the experimental data of true stress-true strain curves.It was revealed that the volume fraction of dynamic recrystallized grains increased with increasing strain in terms of S-curves.A good agreement between the proposed DRX kinetics model and microstructure observation results validates the accuracy of DRX kinetics model for AZ91 D alloy.