Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational ...Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational analysis theory to screen out candidate drill bits with reference values.A new comprehensive performance evaluation model of drill bit was established by constructing the absolute ideal solution,changing the relative distance measurement method,and introducing entropy weight to work out the closeness between the candidate drill bits and ideal drill bits and select the reasonable drill bit.Through the construction of absolute ideal solution,improvement of relative distance measurement method and introduction of entropy weight,the inherent defects of TOPSIS decision analysis method,such as non-absolute order,reverse order and unreasonable weight setting,can be overcome.Simple in calculation and easy to understand,the new bit selection method has good adaptability to drill bit selection using dynamic change drill bit database.Field application has proved that the drill bits selected by the new drill bit selection method had significant increase in average rate of penetration,low wear rate,and good compatibility with the drilled formations in actual drilling.This new method of drill bit selection can be used as a technical means to select drill bits with high efficiency,long life and good economics in oilfields.展开更多
目的 评价山东省某三级综合医院的运营管理效能,旨在为推动公立医院高质量发展提供参考。方法 基于文献分析法构建三级综合医院临床科室高质量发展评价指标体系,结合山东省某三级综合医院2023年1月至12月的月度运行数据,采用熵权逼近理...目的 评价山东省某三级综合医院的运营管理效能,旨在为推动公立医院高质量发展提供参考。方法 基于文献分析法构建三级综合医院临床科室高质量发展评价指标体系,结合山东省某三级综合医院2023年1月至12月的月度运行数据,采用熵权逼近理想解排序(technique for order preference by similarity to an ideal solution, TOPSIS)法对临床科室高质量发展进行综合评价,运用C_(i)值判断该医院运营管理效能优劣。结果 本研究共纳入3个一级指标和28个二级指标。TOPSIS综合分析结果显示,自2023年4月以来,C_(i)值明显上升,由0.435逐月上升至10月的0.534,而11月和12月C_(i)值呈略微下降趋势。分维度评价结果显示,该医院的服务能力、质量安全和运行效率下设的二级指标(逐步降低类指标除外)均呈明显上升趋势。结论 该医院临床科室高质量发展整体呈向好趋势,尤其是在服务能力、质量安全和运行效率方面表现突出。展开更多
目的 构建磁共振成像(Magnetic Resonance Imaging,MRI)远程质量控制核心评价指标体系,并对MRI远程质量控制工作进行实证研究。方法 通过文献分析法、非结构式访谈法、德尔菲法系统分析MRI远程质量控制评价关键要素,构建核心评价指标体...目的 构建磁共振成像(Magnetic Resonance Imaging,MRI)远程质量控制核心评价指标体系,并对MRI远程质量控制工作进行实证研究。方法 通过文献分析法、非结构式访谈法、德尔菲法系统分析MRI远程质量控制评价关键要素,构建核心评价指标体系。收集2022—2023年医院MRI远程质量控制中各指标数据,采用基于熵权的逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)进行评价,同时与MRI质量控制中临床照片评估的结果进行对比。结果 本研究构建了一套MRI远程质量控制核心评价指标体系,涵盖环境参数、射频系统、磁体系统、图像性能4项一级指标及15项二级指标;此外,实证研究表明熵权TOPSIS法的评估结果与临床照片评估法基本一致(皮尔逊相关系数ρ=0.78)。结论 本研究构建的MRI远程质量控制核心评价指标体系,兼具有效性、客观性和实用性,为医疗设备的数字化、精细化质量管理提供了新的思路与方法工具,该体系的推广应用有望在提升医疗设备管理效能方面发挥重要作用。展开更多
基金Supported by China National Science and Technology Major Project(2016ZX05020-006)。
文摘Considering the stratum anti-drilling ability,drill bit working conditions,drill bit application effect and drill bit economic benefits,the similarity of stratum anti-drilling ability was evaluated by grey relational analysis theory to screen out candidate drill bits with reference values.A new comprehensive performance evaluation model of drill bit was established by constructing the absolute ideal solution,changing the relative distance measurement method,and introducing entropy weight to work out the closeness between the candidate drill bits and ideal drill bits and select the reasonable drill bit.Through the construction of absolute ideal solution,improvement of relative distance measurement method and introduction of entropy weight,the inherent defects of TOPSIS decision analysis method,such as non-absolute order,reverse order and unreasonable weight setting,can be overcome.Simple in calculation and easy to understand,the new bit selection method has good adaptability to drill bit selection using dynamic change drill bit database.Field application has proved that the drill bits selected by the new drill bit selection method had significant increase in average rate of penetration,low wear rate,and good compatibility with the drilled formations in actual drilling.This new method of drill bit selection can be used as a technical means to select drill bits with high efficiency,long life and good economics in oilfields.
文摘目的 评价山东省某三级综合医院的运营管理效能,旨在为推动公立医院高质量发展提供参考。方法 基于文献分析法构建三级综合医院临床科室高质量发展评价指标体系,结合山东省某三级综合医院2023年1月至12月的月度运行数据,采用熵权逼近理想解排序(technique for order preference by similarity to an ideal solution, TOPSIS)法对临床科室高质量发展进行综合评价,运用C_(i)值判断该医院运营管理效能优劣。结果 本研究共纳入3个一级指标和28个二级指标。TOPSIS综合分析结果显示,自2023年4月以来,C_(i)值明显上升,由0.435逐月上升至10月的0.534,而11月和12月C_(i)值呈略微下降趋势。分维度评价结果显示,该医院的服务能力、质量安全和运行效率下设的二级指标(逐步降低类指标除外)均呈明显上升趋势。结论 该医院临床科室高质量发展整体呈向好趋势,尤其是在服务能力、质量安全和运行效率方面表现突出。
文摘目的 构建磁共振成像(Magnetic Resonance Imaging,MRI)远程质量控制核心评价指标体系,并对MRI远程质量控制工作进行实证研究。方法 通过文献分析法、非结构式访谈法、德尔菲法系统分析MRI远程质量控制评价关键要素,构建核心评价指标体系。收集2022—2023年医院MRI远程质量控制中各指标数据,采用基于熵权的逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)进行评价,同时与MRI质量控制中临床照片评估的结果进行对比。结果 本研究构建了一套MRI远程质量控制核心评价指标体系,涵盖环境参数、射频系统、磁体系统、图像性能4项一级指标及15项二级指标;此外,实证研究表明熵权TOPSIS法的评估结果与临床照片评估法基本一致(皮尔逊相关系数ρ=0.78)。结论 本研究构建的MRI远程质量控制核心评价指标体系,兼具有效性、客观性和实用性,为医疗设备的数字化、精细化质量管理提供了新的思路与方法工具,该体系的推广应用有望在提升医疗设备管理效能方面发挥重要作用。
