目的构建大型医疗设备利用效率综合评价指标体系,对大型医疗设备的综合利用情况进行量化评价分析。方法运用数据包络分析法(Data Envelopment Analysis,DEA)对某医院大型医疗设备(CT、MRI、PET-CT、SPECT、LA、DSA、B超)的利用效率进行...目的构建大型医疗设备利用效率综合评价指标体系,对大型医疗设备的综合利用情况进行量化评价分析。方法运用数据包络分析法(Data Envelopment Analysis,DEA)对某医院大型医疗设备(CT、MRI、PET-CT、SPECT、LA、DSA、B超)的利用效率进行分析,并用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)对上述设备利用效率进行综合评价及排序。结果DEA分析表明,CT和B超的综合效率、纯技术效率与规模效率值均为1,即相对有效;其他设备在利用率上存在DEA无效,SPECT相对效率最低。对DEA分析无效的大型医疗设备各项指标进行理想值修正,期望达到有效,提高利用率。TOPSIS分析表明,CT和B超的综合利用效率最高,SPECT、PET-CT和LA的利用效率较低。综合分析,导致DEA无效及TOPSIS利用效率排序靠后的主要因素是科研项目和发表文章;医疗上,各设备已得到良好使用,但从社会效益看,未得到很好的利用。结论运用DEA-TOPSIS组合模型对医学装备的综合利用情况进行量化评价分析,为医院设备的购置及合理利用提供科学的参考数据。作为三级甲等医院,其定位是研究型医院,管理者更应重视大型医疗设备的社会效益,提高其综合利用率。展开更多
Compressed air pumped hydro energy storage equipment combines compressed air energy storage technology and pumped storage technology. The water is pumped to a vessel to compress air for energy storage, and the compres...Compressed air pumped hydro energy storage equipment combines compressed air energy storage technology and pumped storage technology. The water is pumped to a vessel to compress air for energy storage, and the compressed air expanses pushing water to drive the hydro turbine for power generation. The novel storage equipment saves natural gas resources, reduces carbon emission, and improves the controllability and reliability. The principle of compressed air pumped hydro energy storage is introduced and its mathematical model is built. The storage and generation process of the novel equipment is analyzed using the model. The calculation formula of the storage power is deduced in theory in different situations of isothermal and adiabatic compression. The optimal storage scheme is given when the capacity and withstand pressure of the vessel is definitive, and the max available capacity and the equipment utilization efficiency evaluation of the scheme is given.展开更多
文摘目的构建大型医疗设备利用效率综合评价指标体系,对大型医疗设备的综合利用情况进行量化评价分析。方法运用数据包络分析法(Data Envelopment Analysis,DEA)对某医院大型医疗设备(CT、MRI、PET-CT、SPECT、LA、DSA、B超)的利用效率进行分析,并用逼近理想解排序法(Technique for Order Preference by Similarity to Ideal Solution,TOPSIS)对上述设备利用效率进行综合评价及排序。结果DEA分析表明,CT和B超的综合效率、纯技术效率与规模效率值均为1,即相对有效;其他设备在利用率上存在DEA无效,SPECT相对效率最低。对DEA分析无效的大型医疗设备各项指标进行理想值修正,期望达到有效,提高利用率。TOPSIS分析表明,CT和B超的综合利用效率最高,SPECT、PET-CT和LA的利用效率较低。综合分析,导致DEA无效及TOPSIS利用效率排序靠后的主要因素是科研项目和发表文章;医疗上,各设备已得到良好使用,但从社会效益看,未得到很好的利用。结论运用DEA-TOPSIS组合模型对医学装备的综合利用情况进行量化评价分析,为医院设备的购置及合理利用提供科学的参考数据。作为三级甲等医院,其定位是研究型医院,管理者更应重视大型医疗设备的社会效益,提高其综合利用率。
文摘Compressed air pumped hydro energy storage equipment combines compressed air energy storage technology and pumped storage technology. The water is pumped to a vessel to compress air for energy storage, and the compressed air expanses pushing water to drive the hydro turbine for power generation. The novel storage equipment saves natural gas resources, reduces carbon emission, and improves the controllability and reliability. The principle of compressed air pumped hydro energy storage is introduced and its mathematical model is built. The storage and generation process of the novel equipment is analyzed using the model. The calculation formula of the storage power is deduced in theory in different situations of isothermal and adiabatic compression. The optimal storage scheme is given when the capacity and withstand pressure of the vessel is definitive, and the max available capacity and the equipment utilization efficiency evaluation of the scheme is given.