Assessment of debris flow hazards is important for developing measures to mitigate the loss of life and property and to minimize environmental damage. Two modified uncertainty models, Set Pair Analysis (SPA) and mod...Assessment of debris flow hazards is important for developing measures to mitigate the loss of life and property and to minimize environmental damage. Two modified uncertainty models, Set Pair Analysis (SPA) and modified Set Pair Analysis (mSPA), were suggested to assess the regional debris flow hazard. A ease study was conducted in seven towns of the Beichuan county, Sichuan Province, China, to test and compare the application of these two models in debris flow hazard assessment. The results showed that mSPA only can fit for value-variables, but not for non value-variable assessment indexes, Furthermore, as for a given assessment index xi, mSPA only considers two cases, namely, when grade value increases with xi and when grade value decreases with xi. Thus, mSPA can not be used for debris flow hazard assessment but SPA is credible for the assessment because there are no limitations when using SPA model to assess the debris flow hazard. Therefore, in this study SPA is proposed for assessing debris flow hazard.展开更多
文摘目的:运用住院日适当性评价修正方案( N-AEP)分析和评价某综合性三级甲等医院2011—2013年住院日适当性,评估诊疗流程中不适当住院日比例及其成因,预测平均住院日的缩短空间。方法依照卫生部三级综合医院评审数据标准,在18种住院重点疾病中选取某院2011—2013年循环系统、呼吸系统、消化系统、泌尿生殖系统的4种代表疾病:急性心肌梗死、慢性阻塞性肺疾病、消化道出血(无并发症)、肾衰竭共240份病历档案的2926个住院日为样本对象,采用N-AEP进行回顾性评价和研究,利用住院日延迟评判工具( the delay tool)进行归因分析。结果2926个住院日中337个判断为不适当住院日,住院日不适当比例为11.52%。结论与国内近年来相关研究相比,研究的不适当住院日比例处于中等水平;经过不适当住院日判定后的平均住院日可分别缩短为9.98天、11.78天、10.78天、10.60天;建议医院采取综合管理措施,进一步优化住院日适当性。
基金supported by the National Natural Science Foundation of China (Grant Nos. 51279116)the New Teacher Fund of Ministry of Education of China (Grant No. 20120181120124)+1 种基金the Excellent Scholar Fund of Sichuan UniversityOpen Fund Program of State key Laboratory of Hydraulics and River Engineering, Sichuan University, China (Grant No. 0901)
文摘Assessment of debris flow hazards is important for developing measures to mitigate the loss of life and property and to minimize environmental damage. Two modified uncertainty models, Set Pair Analysis (SPA) and modified Set Pair Analysis (mSPA), were suggested to assess the regional debris flow hazard. A ease study was conducted in seven towns of the Beichuan county, Sichuan Province, China, to test and compare the application of these two models in debris flow hazard assessment. The results showed that mSPA only can fit for value-variables, but not for non value-variable assessment indexes, Furthermore, as for a given assessment index xi, mSPA only considers two cases, namely, when grade value increases with xi and when grade value decreases with xi. Thus, mSPA can not be used for debris flow hazard assessment but SPA is credible for the assessment because there are no limitations when using SPA model to assess the debris flow hazard. Therefore, in this study SPA is proposed for assessing debris flow hazard.